{"type":"firestarter.listing","listing":{"id":"lst_lqnJ56dS","product_name":"Model 66 Septagonal Fountain Pen - Ruby","category":"Fountain Pen - Model 66","description":" \n\n♦ The 66 Septagonal has 7 facets or flats milled into each cap and barrel, which also serve as a roll stop feature.\nThis piece is made of black acrylic fitting in our precious stone theme for the 66s. ♦ Features our special block threads at the end of the grip section. These smoother feeling threads are out of the way of your fingers. Placing the threads at this spot limits the amount of air within the cap chamber, thereby helping to eliminate dry out. The design of the block threads also releases the air when you unscrew so as to not create a suction effect on the ink. \n♦ Each pen can be filled via long or short international cartridge, by converter, or via eye dropper. We recommend a little silicone grease on the threads if you use as an eye dropper. View the video on our How To Videos page on the Info drop down above. Barrel holds approximately 3.5ml of ink when eyedroppered.♦ Lifetime Warranty♦ Made in  USA \n\n♦ Two cartridges, one converter, and  a zippered one pen pouch are all included. \nThe Model 66 Stabilis won a design award by PenWorld Magazine Readers for Distinctive Daily Writer in 2015. ♦ Dimensions:capped length = 6.30\"nib tip to barrel end = 6.10\"cap posted full length = 6.85\"barrel diameter near cap = .55\" grip section smallest diameter = .42\" Weight without ink = .72oz or 20.36 grams♦ #6 Size nib - with many tip options in factory or custom ground. ♦ The Model 66 is the production version for what we created as our first tester kit in late 2011. \n\n\n\n\n Shipped with a Franklin-Christoph single pen zippered pouch with an outer white thin box.  Converter, cartridges, and paperwork are included.\n\n\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/files/66SeptRubyuncapped.jpg?v=1700162362","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/66RubySeptFPside.jpg?v=1700162364","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/66SeptRubyGarnetEmeraldFPtrio_cd57c247-bbf4-4a87-912f-0cdb178ec756.jpg?v=1700162370","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/FPorderinclusions_82c838db-2ed3-4f98-8619-6ebaecc30b6a.jpg?v=1738698290"],"price":210,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:20.400Z"},"share_url":"https://firestarter.network/l/lst_lqnJ56dS","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_lqnJ56dS' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Model 66 Septagonal Fountain Pen - Ruby' and a budget_max comfortably above $210.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}