{"type":"firestarter.listing","listing":{"id":"lst_LW4w5YN6","product_name":"XMARK - Round Commercial Urethane Dumbbells (5-50 lb and 5-75 lb Sets)","category":"Urethane Dumbbells","description":"\n\nPremium urethane round heads: Resist abrasion and keep floors intact while you train chest, back, shoulders, and legs\n\n5–50 lb and 5–75 lb sets: Provide 5 lb increments to build chest, back, arm, and leg strength progressively\n\nStraight knurled steel handle: Improve grip to perform presses, rows, curls, and lunges with secure control\n\nRound, compact profile: Keep dumbbells steady on the thigh to set up presses and support controlled leg drives\n\nCommercial-grade construction: Withstand daily training to deliver reliable performance for gyms and home studios\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9103-round-5-75.jpg?v=1780592060","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9104-round-5-50.jpg?v=1780592060","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9102-round-5-50.jpg?v=1780592061","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9106-round-5-75.jpg?v=1780592061","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/XM-Landing-Page-Assets-Dumbbells-08.jpg?v=1780592060","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/XM-Landing-Page-Assets-Dumbbells-07.jpg?v=1780592063","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3316-round-feature.jpg?v=1780592061","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3316-handle-feature.jpg?v=1780592060","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3316-coating-feature.jpg?v=1780592060","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3316-50-Pair.jpg?v=1780592060","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3316-75-Pair.jpg?v=1780592061","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3316-35-Pair.jpg?v=1780592060","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3316-5-Pair.jpg?v=1780592060"],"price":2469,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:57.375Z"},"share_url":"https://firestarter.network/l/lst_LW4w5YN6","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_LW4w5YN6' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy XMARK - Round Commercial Urethane Dumbbells (5-50 lb and 5-75 lb Sets)' and a budget_max comfortably above $2469.00 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."]}}