Wide Base Single Highway Service Truck Chains with Cams are constructed to National Association of Chain Manufacturer specifications. Built-in cams assist with securing the chain tight against the tire and prolong the product life. A T-handle tool is included with each pair of chains for locking and unlocking the cams. Product Features:TIRE SIZE: PR78-15, 11-15LT, 31X11.5-15LT, 32X11.5-15LT, 33X9.50-15LT, 33X13.5-15, 34X9.50-15, PR78-16, P285/60R16, 275/65R16LT, 285/60R16LT, 32X11.5-16LT, 33X13.5-16, 34X9X16, 12-16.5LT, 31X10.5-16.5LT, 285/60R17, 285/70R17, 305/45R17, P265/60R18TIRE SIZE: 285/60R18, 285/65R18, 285/45R19, 275/60R20, P285/50R20Manufactured to NACM specificationsBuilt in cams to help keep chain tight on the tire and prolong chain lifeTwist link case hardened cross chainDoes not meet SAE Class S wheel well requirements
