{"product_id":"caribbean-onyx-diamond-580-twsbi-fountain-pen","title":"Caribbean + Onyx - Diamond 580 - TWSBI Fountain Pen","description":"\u003cp\u003e580 has increased ink capacity, about 30% more than 530\u003c\/p\u003e\n\u003cp\u003e580 has improved the smoothness of cap thread turning\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.\u003c\/p\u003e\n\u003cp\u003eFill Mechanism: Piston Filler\u003c\/p\u003e\n\u003cp\u003ePen cap is\u003cspan\u003e able to post\u003c\/span\u003e onto the back of the pen\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to fill: \u003c\/strong\u003e\u003cbr\u003eSimply unscrew the end cap, dip it into the ink, screw it back on, and you're done! Ready to write!\u003c\/p\u003e\n\u003cp\u003ePen cap has an inner cap to ensure a perfect seal when stored away. \u003cbr\u003eMade for the beginner who just wants to try out fountain pens, all the way to the experts. A good everyday worker.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor the normal writer, \u003cstrong\u003eFine (F)\u003c\/strong\u003e is the most popular\u003cbr\u003eIf you tend to lean on a bigger font, \u003cstrong\u003eMedium \u003c\/strong\u003e(\u003cstrong\u003eM)\u003c\/strong\u003e will be perfect\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePlease note: Ink is NOT included. We recommend pairing this with a water-based, non-shimmer ink.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMade in Taiwan\u003c\/span\u003e\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine (EF)","offer_id":49039064924392,"sku":null,"price":113.0,"currency_code":"USD","in_stock":false},{"title":"Fine (F)","offer_id":49039064957160,"sku":null,"price":113.0,"currency_code":"USD","in_stock":false},{"title":"Medium (M)","offer_id":49039064989928,"sku":null,"price":113.0,"currency_code":"USD","in_stock":false},{"title":"Broad (B)","offer_id":49039065022696,"sku":null,"price":113.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0022\/0705\/5985\/files\/Diamond580_CaribbeanOnyx.png?v=1788954451","url":"https:\/\/www.shopchirpsandcheers.com\/products\/caribbean-onyx-diamond-580-twsbi-fountain-pen","provider":"Chirps \u0026 Cheers","version":"1.0","type":"link"}