Shop Nilight 3/8Inch X 35Inch Trailer Safety Chain 2pcs Grade 70 Towing Chain with Clevis Snap Hooks 26400lbs Break Strength use for Trailer, RV,and Boat Towing and Gooseneck Couplers in high quality, support 2 year warranty. The high quality, standard link 3/8inch size chain is heat-treated, and strength tested for superior quality. The chain retainer has a removable zinc-plated pin and cotter for easy chain installation and replacement.