This ball hitch lock fits 1-7/8, 2, and 2-5/16 in couplers. Its sturdy aluminum alloy body and zinc alloy lock core can withstand impact and prying. It also includes a padlock and locking pin for extra protection. The chrome-plated and powder coating surface ensure rust and corrosion resistance. Our lock includes keys, allowing you to lock or unlock quickly without tools. It supports 11 levels of height adjustment, ideal for trailers, RVs, off-road vehicles, and yachts. | Vevor | | Trailer Hitch Lock Kit, Fits for 1-7/8 in, 2 in, 2-5/16 in Couplers, Heavy-Duty Anti-Theft Trailer Ball Lock with Keys | Yellow, silver | Yellow/silver | Best Buy