Facing the complex and varied road conditions in mountainous and frigid regions, your truck needs more reliable protection. These snow chains are made of robust manganese steel, offering superior wear resistance and low-temperature performance, suitable for continuous use on long journeys. The tension cam design ensures the snow chains remain firmly attached to the tires even after long distances, providing sustained traction for trucks and semi-trailers and effectively handling snow, black ice, and muddy roads. Safety operating instructions: Install correctly, adjust after driving, strictly control vehicle speed, and be alert for unusual conditions. Each set includes two snow chains, helping you safely complete every winter adventure.