Sea-Dog shock cord hooks and crimps are made from corrosion-resistant formed 304 stainless steel and are designed for use with bulk shock cord to create custom-length tie-downs. Ideal for marine, RV, and outdoor applications, these hardware kits offer strength, durability, and versatility. Each set includes two hooks and two matching crimps to securely fasten and finish elastic cord ends. Available in different sizes to fit specific cord diameters and needs. Part Number 657086-1: Includes 2 hooks and 2 crimps, fits 5/16" cord, A 2-7/8", B 7/8", weight 0.08 lb Part Number 657106-1: Includes 2 hooks and 2 crimps, fits 3/8" cord, A 2-5/8", B 15/16", weight 0.03 lb Use with your preferred length of shock cord to build secure and adjustable tie-downs for boats, trailers, tarps, or gear.Available Options Manufacturer Part Number Size 657086-1 5/16" 657106-1 3/8"