{"product_id":"twsbi-diamond-580-clear-medium-nib","title":"TWSBI Diamond 580 Clear - Medium Nib","description":"\u003cp\u003e\u003cspan\u003eThe TWSBI Diamond 580 is where the lineup stops being about entry points and starts being about preference. It is a fully disassemblable, piston-filling demonstrator with a faceted barrel that catches light, won't roll off your desk, and shows off whatever ink you've loaded into it. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe twist-piston mechanism holds up to 1.95ml of ink, the most in the TWSBI lineup at this price, and the action is smooth enough that filling it feels like part of the ritual. The bigger upgrade is the nib. The 580 uses a larger #5 stainless steel nib than the ECO or GO, which means more surface contact, better ink flow, and a noticeably different feel on the page; the kind of difference that's hard to explain until you write a full page and don't want to stop. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 580 also comes with a mini wrench and silicone grease for long-term maintenance, presented in a clear display case. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe GO gets you started. The ECO keeps you going. The 580 is what you reach for when you've decided this is actually your thing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease note: Ink is NOT included\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA quick no-brainer guide in choosing nib sizes in an overly complicated fountain pen world:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you write small, go with an \u003cstrong\u003eEF\u003c\/strong\u003e\u003cbr\u003eFor the normal writer, \u003cstrong\u003eF\u003c\/strong\u003e is the most popular\u003cbr\u003eIf you tend to lean on a bigger font, \u003cstrong\u003eM\u003c\/strong\u003e will be perfect\u003cbr\u003e\u003cstrong\u003eB\u003c\/strong\u003e is for statements!! Sign a check in B, write a header in B, do some coloring\/shading in B\u003cbr\u003e\u003cstrong\u003eStub\u003c\/strong\u003e nibs are italic in writing style (have a special card or invitation to write?)\u003c\/span\u003e\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":50000356442349,"sku":null,"price":115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1985\/0395\/files\/580clearangle.webp?v=1779408564","url":"https:\/\/bobodesignstudio.com\/products\/twsbi-diamond-580-clear-medium-nib","provider":"bobo design studio","version":"1.0","type":"link"}