Our Commercial Truck Highway Service Cam-Style Tire Chains are our entry level on-road chains, providing excellent traction on snow and ice-covered roads and highways. Made of Carbon Steel, these chains feature round twist links and come in either 7mm or 8mm wire sizes. Not intended for plow, forklift, tow truck, fire truck or off-road use. Sold in pairs. Rubber spider bungee adjusters sold separately (Quality Chain SKU #0218).