C.T.Johnson (RH5-XL 5/8" Hitch Lock Specifically designed for increased size and load rating of a Class 5 hitch 5/8in. diameter pin for 2 1/2in. receiver-style hitches (Class 5, 3-5/8 inches of usable pin length Triple chrome-plated finish All-weather key cap 2 double-entry chrome-plated keys