The ProGrip Truck Rack Tie Down Top Loader Strap with Double J-Hooks and Round Tubing Adapter is a tie down strap enabled to be bolted or welded to a top loading truck or cargo rack, ideal for construction work or occasional use by truck owners. Constructed with zinc plating to help prevent corrosion and black powder coated to blend in with truck rack. Yellow strap measuring 8′ long and 1 1/2″ wide is made with polyester webbing that resists mildew, UV rays, shrinkage and prevents stretching when wet allowing tie down to support a 500-pound working load limit and has a 1500-pound breaking strength. When attached to truck or cargo rack simply unhook strap while unravelling enough to fit around desired item, hook onto one of two built-in attachment points, and take up slack with the large easy-twist knob. If needed, tie down features 3 ways to tighten load using 5/8″ diameter rod, 3/4″ wrench, or 3/8″ drive socket wrench (tools not included). Comes with a round tubing adapter built into package of tie down; simply snap off the top and bottom portions of the package and retain the round tubing adapter to help in mounting your cargo rack.