Reese Towpower 7033300 3.5" Span Chrome Class 

V Bent Pin Style Receiver Lock

• The REESE Trailer Hitch Receiver Lock features a push button lock mechanism to help prevent theft on the go or when your investments are sitting still.
•  A durable rubber cap keeps dirt out.
•  The 3-1/2-inch span fits 5/8-inch pin hole and is for use on all Class 5 hitch receivers up to 2-1/2-inch outside width.
•  Steel construction features a polished chrome finish.
•  Includes 2 flat keys.