Pewag All Square 7mm Snow Tire Chains with Cam Tighteners - Reversible - Square Link The standard of quality; pewag square link Pewag nickel manganese alloy square link tire chains wear up to 48 times longer than conventional twist link tire chains while giving you up to 32% more traction. Pewag Square link tire chain is specifically designed to provide superior wear and traction under the most severe conditions. Made of premium alloy TITAN Grip® steel Rock Hardness of 63 - tool like steel hardness Extremely durable and efficient, with a result of less downtime Provides superior road gripping ability to standard twist-link chain Saves money in the long run, costs less per mile!: lasts up to 48x longer than standard twist-link chain Can be reversed for better wear and longer life Chains are repairable, lowering long term cost Preferred chain by State & County D.O.T.'s and City Public Works 100% manufactured in Pueblo, Colorado with US Steel! Always Pre-fit Chains before use Qualified Discount: Vet/Senior, Business or Gov’t call 800 770-0077