The Security Chain Company Quick Grip Wide Base Truck Tire Chain - Set of 2 is designed to fit tires with an inside length of 21.57" and a rod diameter of 0.312". The built-in CAM tightening system ensures a secure fit without the need for tensioners, and a cam tool is included for easy installation. Perfect for off-road applications, these tire chains will keep your truck tires secure and safe. FleetPride is your First Click in Heavy Duty®.