{"type":"firestarter.listing","listing":{"id":"lst_KTdwL5jt","product_name":"Nahvalur X Galen Original Demo Fountain Pen - Deep Navy","category":"Fountain Pen","description":"Another Stunning Collaboration with Narwhal Pens\n\n\nProduct\nNarwhal X Galen Leather Deep Navy Demonstrator Fountain Pen\nDescription\nContinuing our collaboration with Narwhal Pens, we are proud to present the Deep Navy Demonstrator Fountain Pen This unique pen features a translucent acrylic finish in a rich deep navy hue, adorned with metallic blue-plated trims and engraved with the Galen Leather logo on the body. Each pen is complemented by a handmade leather single pen sleeve to add a touch of elegance and practicality.\nThe swirling translucent acrylic evokes a mystical aquatic feel, while the internal piston-filling mechanism ensures reliable ink flow. Equipped with a fine stainless steel nib plated in metallic blue, this pen delivers a smooth and consistent writing experience, perfect for capturing your most profound thoughts.\nSpecs\n\n\n\n\n\nCondition\nNew\n\n\nBrand\nNarwhal\n\n\nType\nFountain Pens\n\n\nColor\nDeep Navy\n\n\nBody Material\nTranslucent Acrylic\n\n\nTrim\nMetallic Navy\n\n\nNib\nNo. 6 stainless steel, metallic blue plated\n\n\nFilling Mechanism\nPiston mechanism (bottled ink only)\n\n\nPostable\nNo\n\n\n\n\n\n\n\n\nLength - Closed\n5.77 in. / 146.5mm\n\n\nLength - Open\n5.24 in. / 133mm\n\n\nBarrel Diameter\n0.53 in. / 13.5mm\n\n\nGrip Diameter\n0.43 in. / 11mm\n\n\nWeight\n0.7 oz. / 19.8g\n\n\nPackaged in\nGift Box\n\n\n\n\n\nFeatures\n\nTranslucent acrylic finish in deep navy with metallic blue-plated trims\nEngraved with the Galen Leather logo\nPiston-filling mechanism for bottled inks\nIncludes a handmade leather **single pen sleeve** (color selection not available)\n\nPackaging\nComes in a beautifully crafted gift box.\nReviews on YouTube\n\nAbout Narwhal Pens\nNarwhal Pens debuted their exquisite fountain pen collection at the 2019 DC Pen Show, capturing the hearts of pen enthusiasts worldwide. Known for their artistic designs and precision engineering, Narwhal pens feature self-made nibs and high-quality piston fillers for a premium writing experience.","images":["https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Narwhal-X-Galen-Demo-Fountain-Pen-Deep-Navy.jpg?v=1737217287","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Narwhal-X-Galen-Demo-Fountain-Pen-Deep-Navy-2.jpg?v=1737217289","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Narwhal-X-Galen-Demo-Fountain-Pen-Deep-Navy-3.jpg?v=1737217291"],"price":65,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:00.098Z"},"share_url":"https://firestarter.network/l/lst_KTdwL5jt","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_KTdwL5jt' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Nahvalur X Galen Original Demo Fountain Pen - Deep Navy' and a budget_max comfortably above $65.00 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."]}}