Highway Truck Chains? CAM locking system eliminates the need for chain tighteners. Simply tighten CAM lock with included tool to tighten chains to your tire. Sold in pairs. CAM tool #QG20088 is supplied in each bagChain tensioners are not requiredSold as a pair Tire Sizes: 10-22.59.00-20 th, td { padding-right: 20px; } .product-table-top { display: block; max-width: -moz-fit-content; max-width: fit-content; overflow-x: auto; white-space: nowrap; }