TURTLE TRUCK CHAINS SURECHAIN's classic version. Turtle automatic truck chains are highly recommended due to their special turtle shape design. AUTOMATIC TURTLE TRUCK CHAINS SPECIFICATIONS Size Please refer to the tire table Material Special alloy steel Pattern Turtle shape design Use Not aggressive to the road Performance Better tire protection and continuous traction RECOMMEND READING OF AUTOMATIC TRUCK CHAIN A Comparison Of Traditional Truck Chain and Automatic Truck Chain. AUTOMATIC TURTLE TRUCK CHAINS HIGHLIGHTS Hardened alloy cross and side chain added the durability. Turtle shape chain protects tire while providing continuous traction. Turtule automatic tire chains are not aggressive to the road. These automatic truck chains are galvanized to prevent corrosion. As one of tire chain suppliers, we will do our best to meet all the needs of customers.