{"product_id":"twsbi-obsidian-fountain-pen","title":"TWSBI Obsidian Limited Edition Fountain Pen","description":"\u003cp\u003eThe TWSBI Obsidian Fountain Pen combines reliable engineering with an elegant, modern aesthetic, making it an excellent choice for both everyday writers and pen enthusiasts. Featuring a smooth piston-filling mechanism and a clear ink window, this pen allows you to monitor your ink level at any time—perfect for long writing sessions or on-the-go creativity.\u003c\/p\u003e\n\u003cp\u003eIts standout feature is the dark marbled resin body, inspired by the depth and mystery of natural obsidian stone. The subtle, swirling pattern adds a sophisticated touch while preserving the functional clarity and durability TWSBI is known for. Designed for comfort, balance, and consistent ink flow, the TWSBI Obsidian is a dependable writing companion for journaling, note-taking, and creative projects.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003eEvery detail matters. The pen cap fits seamlessly onto the back of the barrel, but we recommend keeping it off during use to preserve the pristine finish of your Obsidian.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis is a limited edition release that won't be produced again. When they're gone, they're gone forever. \u003cstrong\u003eWe are officially accepting pre-orders on December 21st - this item launches on December 23rd.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKey Features\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePiston-Filling System for high ink capacity and easy refilling\u003c\/li\u003e\n\u003cli\u003eClear Ink Window to monitor ink levels at a glance\u003c\/li\u003e\n\u003cli\u003eDark Marble Resin Body with elegant obsidian-like pattern\u003c\/li\u003e\n\u003cli\u003eDurable Construction designed for everyday use\u003c\/li\u003e\n\u003cli\u003eSmooth Writing Performance with a choice of nib size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe internal piston-filling mechanism holds about 2ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTWSBI Obsidian Fountain Pen Specifications\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Resin and Rose Gold color metal\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.59 in. \/ 142mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.12 in. \/ 130mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): Pen cap cannot be posted.\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.52 in. \/ 13.3mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.4 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 1 oz. \/ 28g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eA quick no brainer guide in choosing nib sizes in an overly complicated fountain pen world:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you write small, go with an \u003cstrong\u003eEF\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eFor the normal writer, \u003cstrong\u003eF\u003c\/strong\u003e is the most popular\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eIf you tend to lean on a bigger font, \u003cstrong\u003eM\u003c\/strong\u003e will be perfect\u003cbr\u003e\u003c\/span\u003e\u003cspan\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":"Extra Fine","offer_id":45673808920766,"sku":"M7445250 - Extra Fine","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":45673808953534,"sku":"M7445260 - Fine","price":120.0,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":45673808986302,"sku":"M7445270 - Medium","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":45673809019070,"sku":"M7445280 - Broad","price":120.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/7564\/2046\/files\/TWSBI-Obsidian-Fountain-Pen-6.jpg?v=1765345283","url":"https:\/\/bertramsinkwell.mom\/products\/twsbi-obsidian-fountain-pen","provider":"Bertram's Inkwell","version":"1.0","type":"link"}