{"type":"firestarter.listing","listing":{"id":"lst_w9Ga-MW8","product_name":"J-Cups 3x3 Pair","category":"J-Cups","description":"\nGreat For Rigs: The 3\"x3\" J-Cups\nThese J-Cups are built from heavy-duty steel, precision bent and welded. Plus, they're lined with a UHMW plastic to protect the finish on your bar. Finally, they're built to fit any 3\"x3\" rig in the market.\n\nFull year satisfaction guarantee\nFits most other racks on the market that are built of 3\"x3\" steel with 1\" holes\nChrome-Plated Pin Size: 0.96\" (24.5mm)\n\n1,000 lb weight capacity (pair)\nSold by the pair (one left/ one right j-cup)\n\nCompatible with:\n\nAll Fringe 3x3 racks with 1\" pin holes\nRogue Monster Racks\nREP PR-5000\nTitan Series Power Rack\nAny other rack with 1\" pin holes\n\nPackage Contents and Specifications\n\n\nContents: 2 - 3\"x3\" J-Cup Attachments (1 Pair)\n\nWeight: 11.5 pounds\n\nWeight Capacity: 1,000 lb (pair)\n\nDimensions: 9 1/2\" h x 3 1/3\" w x 7\" d. Hole size: 1 inch, Pin is 24.5mm (0.96\") in diameter\n\nMaterial: Powder coated steel and UHMW plastic (Metric #3 Allen wrench to replace UHMW). Pin is NOT powder-coated, but is chrome-plated for low friction and high durability\n\nWarranty: 1 Year\n\nMore information\nThe J-Cups are designed and built for our 3x3 rigs and squat racks, but they will fit many other brands of rig. Please note the pin size is 24.5mm and is not powder-coated like the rest of the J-Cup, but chrome-plated instead. 24.5mm is .96\", so if your rack features 1\" holes, these J-Cups WILL fit.","images":["https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106902591.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106902646-106902662.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106902826.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106902955.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106903118.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106903241.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106903536.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106903736.jpg?v=1751979999","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cups-3x3-Pair-Fringe-Sport-106903496.jpg?v=1751979999"],"price":92,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.032Z"},"share_url":"https://firestarter.network/l/lst_w9Ga-MW8","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_w9Ga-MW8' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy J-Cups 3x3 Pair' and a budget_max comfortably above $92.00 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."]}}