VEVOR, your exclusive tool expert. This binder chain is made of high-quality steel and has passed Grade 80 DOT certification. It is also equipped with adjustable hooks to fit various types of vehicles. The diameter of the chain is 5/16 inch, and the length is 3ft can firmly fix heavy items. It's the ideal option for transport. | Vevor | | V-Chain Bridle, 9620 lbs Working Load Limit, 5/16'' x 3' G80 Tow Chain with RTJ Cluster Hooks, DOT Certified | Copper | Best Buy