{"product_id":"twsbi-580-nib-units","title":"TWSBI Diamond 580 Fountain Pen Nib Unit","description":"\u003cp\u003eInterchangeable nib unit for the TWSBI Diamond 580 and Diamond 580 ALR fountain pens. Available in stainless steel finish only. Nib units sold individually.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":48896913866905,"sku":"SQ6369760","price":22.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":48896913899673,"sku":"SQ8167051","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":48896913932441,"sku":"SQ8292978","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":48896913965209,"sku":"SQ3924243","price":22.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":48896913997977,"sku":"SQ5963428","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/4239\/9641\/files\/7C37F310-1255-4BCB-8DB2-AC66F850B96B.webp?v=1787036472","url":"https:\/\/shop.gentlemanstationer.com\/products\/twsbi-580-nib-units","provider":"The Gentleman Stationer","version":"1.0","type":"link"}