{"type":"firestarter.listing","listing":{"id":"lst_eg8CsXIU","product_name":"J-Cup 2x3 Pair","category":"J-Cups","description":"What You Need to Know About 2x3 J-Cups by Fringe Sport\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 2x3\" rig in the market, as long as the rig accepts 5/8\" hardware.\n\nFull year satisfaction guarantee.\n1,000 lb weight capacity (pair)\nSold by the pair (one left/ one right j-cup)\nFits most racks on the market that are built of 2\"x3\" steel and accept 5/8\" hardware.\nCompatible with 6 Fringe Sport racks (see below).\n\nPackage Contents and Specifications\n\n\n\nContents: 2 - 2\"x3\" J-Cup Attachments (1 Pair)\n\nWeight: 7.2 pounds\n\nWeight Capacity: 1,000 lb\n\nDimensions: 6 1/2\" h x 2 1/2\"w x 8 1/4\"d, pin is 16.5 mm in diameter\n\nMaterial: Powder coated steel and UHMW plastic (Metric #3 Allen wrench to replace UHMW)\n\nColor: Black\n\nWarranty: 1 Year\n\n\nMore Information\nCompatible with the following Fringe Sport rigs and racks:\n\n\nSquat rack with pull up bar¬ ***Note: These J-Cups will not fit Garage Series Squat Racks with Pull Up Bar ordered between June 2020 and October 2020. Please contact team@fringesport.com to place an order for j-cups if you ordered during this time frame***\n\nSquat rack with pull up bar\nPower/kip cage\nFloor mounted power/kip cage\nCommercial squat rack\nCommercial independent squat rack\n\nThe J-Cups are designed and built overseas for Bomba Rigs, but they will fit many other brands of rig.  You can even build your own rig and use these J-cups.","images":["https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cup-2x3-Pair-Fringe-Sport-106882250.jpg?v=1718671463","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cup-2x3-Pair-Fringe-Sport-106882456.jpg?v=1718671467","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cup-2x3-Pair-Fringe-Sport-106882635.jpg?v=1718671465","https://cdn.shopify.com/s/files/1/0049/4272/files/J-Cup-2x3-Pair-Fringe-Sport-106882597.jpg?v=1718671469"],"price":98,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.082Z"},"share_url":"https://firestarter.network/l/lst_eg8CsXIU","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_eg8CsXIU' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy J-Cup 2x3 Pair' and a budget_max comfortably above $98.00 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."]}}