Our Light Truck Carbon Link Mud Service Non-Cam Tire Chains are built out of larger material than our standard highway service chain to tackle off-road mud use applications. Extra heavy hooks stand up to increased torque from digging through deep mud. Made from 8mm carbon steel wire. Not for use on plow, forklift, tow truck or fire trucks. Sold in Pairs, Rubber Spider Bungee Adjusters sold separately (Quality Chain SKU #0216).