{"title":"TWSBI Diamond 580 Fountain Pens","description":"TWSBI Diamond 580 Fountain Pens","products":[{"product_id":"diamond-580","title":"TWSBI Diamond 580 - Extra Fine Nib","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003c\/span\u003e\u003cbr\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-7 technical-tab-value\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eNib: Extra Fine\u003c\/li\u003e\n\u003cli\u003eBody Color: Clear\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":13196430278755,"sku":"B2-4\/M7443110","price":56.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580clearcap_1024x1024_13006159-0a0d-4cf1-a0a3-e9e309bda011.png?v=1616348688"},{"product_id":"diamond-580-rose","title":"TWSBI Diamond 580AL Rose","description":"\u003cem\u003e\u003cstrong\u003e2020\/07\/16 Update: TWSBI found more 580AL Rose in storage.\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003eThe Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003c\/span\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Rose\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eRelease Date: 2017\/11\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Fine","offer_id":32843247943779,"sku":"B2-4\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":32843247976547,"sku":"B2-4\/M7446410\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":32843248009315,"sku":"B2-4\/\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":32843248042083,"sku":"B2-7\/M7446440\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"1.1 Stub","offer_id":32843248074851,"sku":"B2-7\/\/discontinued","price":65.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580alrosemain_1024x1024_5f32b725-b4aa-4b2c-a362-a579de528690.png?v=1595367139"},{"product_id":"twsbi-diamond-580-nib-set","title":"TWSBI Diamond 580 Nib Set","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eSpare Nib Sets for Diamond 580 fountain pen\u003c\/p\u003e\n\u003cp\u003eWill fit the previous generation 540 and 530 fountain pens. \u003c\/p\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"EF","offer_id":13148704178275,"sku":"WA-4\/M7443560","price":23.0,"currency_code":"USD","in_stock":false},{"title":"F","offer_id":13148712206435,"sku":"WA-4\/M7443570","price":23.0,"currency_code":"USD","in_stock":false},{"title":"M","offer_id":13148712239203,"sku":"WA-4\/M7443580","price":23.0,"currency_code":"USD","in_stock":false},{"title":"B","offer_id":13148712271971,"sku":"WA-4\/M7443590","price":23.0,"currency_code":"USD","in_stock":false},{"title":"Stub 1.1","offer_id":13148712304739,"sku":"WA-4\/M7443600","price":23.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580nibset_1024x1024_37ab61d2-cdad-484d-bc47-d43873308b9d.png?v=1571318288"},{"product_id":"diamond-580-fine-nib","title":"TWSBI Diamond 580 - Fine Nib","description":"\u003cp\u003eThe Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-7 technical-tab-value\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eNib: Fine\u003c\/li\u003e\n\u003cli\u003eBody Color: Clear\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":13196413730915,"sku":"B2-4\/M7443120","price":56.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580clearcap_1024x1024_7ed2ce4b-b0f4-4e1c-89ac-b630551fa7bc.png?v=1616348656"},{"product_id":"diamond-580-stub-1-1","title":"TWSBI Diamond 580 - Stub 1.1","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003c\/span\u003e\u003cbr\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-7 technical-tab-value\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eNib: Stub 1.1\u003c\/li\u003e\n\u003cli\u003eBody Color: Clear\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":13196425920611,"sku":"B2-7\/M7443150","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580clearcap_1024x1024_01ee1879-bc1d-45f6-a4bc-b8e53e373da8.png?v=1616348619"},{"product_id":"twsbi-diamond-580-medium-nib","title":"TWSBI Diamond 580 - Medium Nib","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003c\/span\u003e\u003cbr\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-7 technical-tab-value\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eNib: Medium\u003c\/li\u003e\n\u003cli\u003eBody Color: Clear\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":29671806107747,"sku":"B2-4\/M7443130","price":56.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580clearcap_1024x1024_6712057c-cc1f-4f7a-bd8b-e92b671a0ff9.png?v=1616348608"},{"product_id":"twsbi-diamond-580-broad-nib","title":"TWSBI Diamond 580 - Broad Nib","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003c\/span\u003e\u003cbr\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-7 technical-tab-value\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eNib: Medium\u003c\/li\u003e\n\u003cli\u003eBody Color: Clear\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":29671811580003,"sku":"B2-7\/M7443140","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580clearcap_1024x1024_c33f647d-1517-40a5-bf50-4c974ac88f5e.png?v=1616348580"},{"product_id":"twsbi-diamond-580al-silver","title":"TWSBI Diamond 580AL Silver","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003c\/span\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Silver\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":32159019925603,"sku":"B2-4\/M7444240","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":32159019958371,"sku":"B2-4\/M7444250","price":73.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":32159019991139,"sku":"B2-4\/M7444260","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":32159020023907,"sku":"B2-7\/ M7444270","price":73.0,"currency_code":"USD","in_stock":false},{"title":"1.1 Stub","offer_id":32159020056675,"sku":"B2-7\/discontinued","price":73.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580AL_1024x1024_7e6ee047-1ee9-4c93-8170-1e82d45478f6.png?v=1582076795"},{"product_id":"twsbi-diamond-580alr-nichel-gray","title":"TWSBI Diamond 580ALR Nickel Gray","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003cbr\u003eThe main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Nickel Gray\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":32199570653283,"sku":"B2-5\/M7447050","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":32199570686051,"sku":"B2-6\/M7447060","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":32199570718819,"sku":"B2-6\/M7447070","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":32199570751587,"sku":"B2-7\/M7447080","price":73.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":32199570784355,"sku":"B2-7\/M7447090","price":73.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/fullsizeoutput_70c_1024x1024_cf947a84-c709-405b-88eb-65ef2f23649a.jpg?v=1583282495"},{"product_id":"twsbi-diamond-580-smoke-rose-gold-fountain-pen","title":"TWSBI Diamond 580 Smoke RoseGold II Fountain Pen","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003c\/span\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003eRelease Date: 4\/1\/2020\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":32236343361635,"sku":"B2-4\/M7447590","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":32236343394403,"sku":"B2-4\/M7447600","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":32236343427171,"sku":"B2-4\/M7447610","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":32236343459939,"sku":"B2-7\/M7447620","price":89.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":32236343492707,"sku":"B2-7\/M7447630","price":89.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/2F8F40D8-38A6-409D-8550-0984137CCB3C_1024x1024_c69fcef1-0d20-4e70-84eb-343c70177da1.png?v=1586537817"},{"product_id":"twsbi-diamond-580alr-prussian-blue","title":"TWSBI Diamond 580ALR Prussian Blue","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003cbr\u003eThe main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Prussian Blue\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eRelease Date: 5\/29\/2020\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":32518394183779,"sku":"B2-5\/M7447920","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":32518394216547,"sku":"B2-6\/M7447930","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":32518394249315,"sku":"B2-6\/M7447940","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":32518394282083,"sku":"B2-7\/M7447950","price":73.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":32518394314851,"sku":"B2-7\/M7447960","price":73.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580ALRPrussianBlue.jpg?v=1589505950"},{"product_id":"twsbi-diamond-580alr-punch-pink","title":"TWSBI Diamond 580ALR Punch Pink","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003cbr\u003eThe main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Punch Pink\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eRelease Date: 9\/15\/2020\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":33031043612771,"sku":"B2-4\/M7447870\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33031043645539,"sku":"B2-4\/M7447880\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":33031043678307,"sku":"B2-4\/M7447890\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33031043711075,"sku":"B2-4\/M7447900\/discontinued","price":65.0,"currency_code":"USD","in_stock":false},{"title":"1.1 Stub","offer_id":33031043743843,"sku":"B2-4\/M7447910\/discontinued","price":65.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/4C1B6A23-1E93-4CC6-8F53-24ED8953EFEF.png?v=1599477940"},{"product_id":"twsbi-diamond-580alr-navy-blue","title":"TWSBI Diamond 580ALR Navy Blue","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003cbr\u003eThe main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Navy Blue\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eRelease Date: 9\/9\/2021\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":40510318051504,"sku":"B2-5\/M7448020","price":73.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":40510318084272,"sku":"B2-6\/M7448030","price":73.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":40510318117040,"sku":"B2-6\/M7448040","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":40510318149808,"sku":"B2-7\/M7448050","price":73.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":40510318182576,"sku":"B2-7\/M7448060","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580ALR_NavyBlue.jpg?v=1630627961"},{"product_id":"twsbi-diamond-580-white-rosegold-ii-fountain-pen","title":"TWSBI Diamond 580 White RoseGold II Fountain Pen","description":"\u003cp\u003eThe Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003eRelease Date: 4\/22\/2022\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":42867188367573,"sku":"B2-4\/M7449010","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":42867188400341,"sku":"B2-4\/M7449020","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":42867188433109,"sku":"B2-4\/M7449030","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":42867188465877,"sku":"B2-7\/M7449040","price":89.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":42867188498645,"sku":"B2-7\/M7449050","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/A0488F7F-CD7C-4022-A43B-5558ECC82920_1024x1024_1.png?v=1650640764"},{"product_id":"twsbi-diamond-580-iris-fountain-pen","title":"TWSBI Diamond 580 Iris Fountain Pen","description":"\u003cp\u003eThe Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003eRelease Date: 7\/15\/2022\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eDue to the nature of the finish, every pen will be similar in color accents but all slightly different\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":43261145448661,"sku":"B2-4\/M7449260","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":43261145481429,"sku":"B2-4\/M7449270","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":43261145514197,"sku":"B2-4\/M7449280","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":43261145546965,"sku":"B2-7\/M7449290","price":89.0,"currency_code":"USD","in_stock":false},{"title":"1.1 Stub","offer_id":43261145579733,"sku":"B2-7\/M7449300","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/products\/580IRIS.jpg?v=1657908740"},{"product_id":"twsbi-diamond-580alr-black","title":"TWSBI Diamond 580ALR Fountain Pen - Black","description":"The Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003cbr\u003eThe main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Black\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eRelease Date: 1\/19\/2024\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":45536168345813,"sku":"B2-5\/M7440940","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":45536168378581,"sku":"B2-6\/M7440950","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":45536168411349,"sku":"B2-6\/M7440960","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":45536168444117,"sku":"B2-7\/M7440970","price":73.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":45536168476885,"sku":"B2-7\/M7440980","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/files\/DSC08896.jpg?v=1704729852"},{"product_id":"twsbi-diamond-50-ink-bottle","title":"TWSBI Diamond 50 Ink Bottle","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI Diamond 50 Ink Bottle is designed with a reservoir to assist in filling fountain pens, and comes with a specific upper attachment designed to easily fill TWSBI Diamond 580, Classic, Mini, or Precision fountain pens.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe TWSBI Diamond 50mL ink bottle is a glass bottle with anodized aluminum top that is the perfect accessory for any fountain pen ink lover! Simply decant your ink into the bottle and follow one of the fill methods listed below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTo fill any fountain pen: Turn the bottle upside down (cap on of course!) and let the upper reservoir fill up. Then, dip your fountain pen or converter into the risen ink level and fill your pen as usual. The reservoir provides a set amount of ink to fill your pen to prevent the hassle of dipping your pen to the bottom of the bottle, trying to get each drop out as the bottle runs low. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTo fill a TWSBI Diamond 580, Classic, Mini, or Precision fountain pen: affix the colored band attachment to the glass bottle. Then, twist off the nib section of your TWSBI pen and attach it to the filling apparatus. While the pen body is attached, turn the piston knob of the fountain pen to draw the ink directly up into your pen. No more inky fingers!\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInk capacity: 50ml\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaterials: Aluminum cap, Glass bottle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncludes reservoir for filling all fountain pens\/ converters\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncludes attachment for filling TWSBI Diamond 580, Classic, Mini, or Precision fountain pens\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTop of Diamond 50 Ink Bottle interchangeable with top of TWSBI 70ml ink bottles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePlease note: Bottle does not come with ink\u003c\/em\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePlease note: This item is fragile! Protected shipping will be automatically applied\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\" data-mce-href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003c\/a\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Black","offer_id":46021440700629,"sku":"B2-1\/M7442980","price":29.0,"currency_code":"USD","in_stock":false},{"title":"Blue","offer_id":46021440733397,"sku":"B2-1\/M7442190","price":29.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":46021440798933,"sku":"B2-1\/M7442170","price":29.0,"currency_code":"USD","in_stock":true},{"title":"Silver (Black Cap)","offer_id":46021440831701,"sku":"B2-1\/M7442160","price":29.0,"currency_code":"USD","in_stock":false},{"title":"Polished Silver (Polished Silver Cap)","offer_id":46021440864469,"sku":"B2-1\/M7447690","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/files\/inkbottlecategory_1024x1024_124674c9-781f-4b10-8ed6-955d178151d2.webp?v=1709223839"},{"product_id":"twsbi-diamond-580al-iceberg","title":"TWSBI Diamond 580AL Fountain Pen - Iceberg","description":"\u003cp\u003eThe Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Color: Ice Blue\u003c\/li\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eRelease Date: 5\/22\/2024\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":47383475028181,"sku":"B2-4\/M7441040","price":73.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":47383475060949,"sku":"B2-4\/M7441050","price":73.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":47383475093717,"sku":"B2-4\/M7441060","price":73.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":47383475126485,"sku":"B2-7\/M7441070","price":73.0,"currency_code":"USD","in_stock":false},{"title":"1.1 Stub","offer_id":47383475159253,"sku":"B2-7\/M7441080","price":73.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/files\/580AL_Iceberg.jpg?v=1715704590"},{"product_id":"twsbi-diamond-580alr-caribbean-w-onyx","title":"TWSBI Diamond 580ALR Fountain Pen - Caribbean Onyx Trim","description":"\u003cp\u003eThe Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003cbr\u003eThe main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\" data-mce-href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\" data-mce-href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"gmail_default\"\u003ePresale date: Nov. 13th, 2024\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"gmail_default\"\u003eOfficial Launch date: Nov. 15th 2024\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\" data-mce-href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":50322762498261,"sku":"B2\/M7441190","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":50322762531029,"sku":"B2\/M7441200","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":50322762563797,"sku":"B2\/M7441210","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":50322762596565,"sku":"B2\/M7441220","price":89.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":50322762629333,"sku":"B2\/M7441230","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/files\/DSC09642.jpg?v=1730803260"},{"product_id":"twsbi-diamond-580alr-affogato-w-onyx","title":"TWSBI Diamond 580ALR Fountain Pen - Affogato Onyx Trim","description":"\u003cp\u003eThe Diamond 580 comes with a benchmark piston ink-filling mechanism. It's clear and comes with all detachable parts. \u003cspan\u003e\u003cspan\u003eThe pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003c\/p\u003e\n\u003cp\u003eTWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.\u003cbr\u003e\u003cbr\u003eThe main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.\u003c\/p\u003e\n\u003cdiv class=\"col-xs-12 no-pad tech-tab-row\"\u003e\n\u003cdiv class=\"col-xs-5 technical-tab-key\"\u003e\n\u003cul\u003e\n\u003cli\u003eBody Material: Resin\u003c\/li\u003e\n\u003cli\u003eCap Type: Screw-cap\u003c\/li\u003e\n\u003cli\u003eCompatible inks \u0026amp; refills: Bottled inks\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston\u003c\/li\u003e\n\u003cli\u003eNib Material: Steel\u003c\/li\u003e\n\u003cli\u003eDiameter: 0.5\"\u003c\/li\u003e\n\u003cli\u003eLength: 5.1\"\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.98ml\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-580-nib-set\"\u003eNib set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/products\/twsbi-diamond-50-ink-bottle-black\"\u003eTWSBI Diamond Ink Bottle\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"gmail_default\"\u003ePresale date: August 25th, 2025\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"gmail_default\"\u003eOfficial Launch date: August 27th, 2025\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eView all \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/yosekastationery.mom\/collections\/twsbi\"\u003eTWSBI products\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003eAbout TWSBI:\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into \"TWS\". The last letters \"Bi\" was added with its literal meaning of \"writing instruments\" in Chinese. Thus combining the two segments, creating TWSBI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":51833868386517,"sku":"B2\/M7441340","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":51833868419285,"sku":"B2\/M7441350","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":51833868452053,"sku":"B2\/M7441360","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":51833868484821,"sku":"B2\/M7441370","price":89.0,"currency_code":"USD","in_stock":true},{"title":"1.1 Stub","offer_id":51833868517589,"sku":"B2\/M7441380","price":89.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1717\/0621\/files\/580ALR-Affogato-03.jpg?v=1754664287"}],"url":"https:\/\/yosekastationery.mom\/collections\/twsbi-diamond-580-fountain-pens.oembed","provider":"Yoseka Stationery","version":"1.0","type":"link"}