Our Commercial Truck Highway Service V-Bar Cam Style Tire Chains have “ice-breaker” cleats welded onto the cross links. Made of 7mm or 8mm carbon steel, the V-Bar links grip ice and packed snow better than regular highway service chains. Not for use on plow, forklift, tow truck or fire trucks. Sold in Pairs, Rubber Spider Bungee Adjusters sold separately (Quality Chain SKU #0218).