Reinforced Single Truck Chains with Cams are manufactured to National Association of Chain Manufacturers specifications and are suitable for over-the-road and off-road use. The cross chain links are reinforced with V-shaped lugs which provide extra bite and additional durability. Built-in cams make tightening the chain on the tire quick and easy and a T-handle tool for locking and unlocking the cams is included with each pair of chains. Product Features:TIRE SIZE: 8.25-15TR, 285/75R15, P275/70R16, 255/85R16LT, 245/70R19.5, 275/55R20, P275/60R20Manufactured to NACM specificationsBuilt in cams to help keep chain tight on the tire and prolong chain lifeReinforced V-bar cross chains provdide extra tractionWell suited for use on ice and off-roadDoes not meet SAE Class S wheel well requirements