The Security Chain Quick Grip Square Rod Alloy CAM Single Tire Chains is the perfect choice for off-road applications. These chains are designed specifically for mud and snow, and feature a low potential for damage to your vehicle. The square rod alloy CAM single tire chains have an inside length of 16.27" and a rod diameter of 7 mm. They also feature a special heat treatment to prevent brittleness in extreme cold conditions. FleetPride is your First Click in Heavy Duty®.