{"type":"firestarter.listing","listing":{"id":"lst_XMRwZneI","product_name":"Multiple Sided Plyometric Boxes","category":"Plyometric Box","description":"Assemble Your Multi-Sided Plyometric Boxes\nBe \"handy\" and use those pumped up hands to assemble your Plyometric Boxes. These Fringe Sport multi-sided plyo boxes were designed in Austin. They come in 3 sizes - 16x18x20\" (Mini), 16x20x24\" (Small) and 20x24x30\" (Large). All three sizes are specifically designed and manufactured to ship flat and be assembled with ease.\nWe tested and examined the boxes on the market and came to a simple conclusion - it is what is on the inside that counts. With the easy assembly with the flat pack, it makes putting together a breeze.\nFirst, every joint on this box is both screwed and glued to ensure the absolute strongest hold. Second, the 30\" faces each sit on a ledge for added strength. Finally, there is an additional brace of the same high quality birch plywood on the inside that hits each of the 4 largest faces for added support. If you want one box for several heights that will last for many years of abuse, you better be sure it's by Fringe Sport.\nWhy choose Fringe Sport multi-sided plyo boxes?\n\n\nAdditional Reinforcement - Extra bracing on every face to make them completely bombproof.\n\n3/4\" Birch Plywood - This wood is strong enough to handle any size person that can get onto it.\n\nRoutered Corners - Small detail, but you will love it when you \"miss\" in the middle of an intense workout.\n\nMultiple Heights- With each side a different length, you get 3 heights for the price of 2 traditional boxes.\n\nShipped as flat pack- You save on pricing and shipping and assemble the box when it arrives to your house.\n\nDurability guaranteed Backed up with Fringe's Fantastic 1-year warranty.\n\nPackage Contents and Specifications\n\n\nContents: 1 - Large, Small, or Mini Multi-Sided Plyo Box\n\nWeight: 26lbs (Mini), 30 lbs. (Small) or 40lbs. (Large)\n\nMaterial: 3/4\" Birch Plywood\n\nDimensions: 16x18x20\" (Mini), 16x20x24\" (Small) or 20x24x30\" (Large)\n\nHow To Build a Flat Pack\n","images":["https://cdn.shopify.com/s/files/1/0049/4272/files/Multiple-Sided-Plyometric-Boxes-Fringe-Sport-106788345.jpg?v=1718669024","https://cdn.shopify.com/s/files/1/0049/4272/files/Multiple-Sided-Plyometric-Boxes-Fringe-Sport-106788470.jpg?v=1718669028","https://cdn.shopify.com/s/files/1/0049/4272/files/Multiple-Sided-Plyometric-Boxes-Fringe-Sport-106788514-106788587.jpg?v=1718669036","https://cdn.shopify.com/s/files/1/0049/4272/files/Multiple-Sided-Plyometric-Boxes-Fringe-Sport-106788679.jpg?v=1718669076","https://cdn.shopify.com/s/files/1/0049/4272/files/Multiple-Sided-Plyometric-Boxes-Fringe-Sport-106788798.jpg?v=1718669011","https://cdn.shopify.com/s/files/1/0049/4272/files/Multiple-Sided-Plyometric-Boxes-Fringe-Sport-106788985.jpg?v=1718669033","https://cdn.shopify.com/s/files/1/0049/4272/files/Multiple-Sided-Plyometric-Boxes-Fringe-Sport-106788878.jpg?v=1718669013"],"price":88.13,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.480Z"},"share_url":"https://firestarter.network/l/lst_XMRwZneI","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 ","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_XMRwZneI' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Multiple Sided Plyometric Boxes' and a budget_max comfortably above $88.13 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."]}}