Etrailer Yellow Coupler Lock 2"

steel coupler lock is built for 1-7/8″ and 2″ flat-lip ball couplers, finished in high-visibility yellow. It fits over the coupler and a quarter-turn of the key drives a locking pin into the ball socket, blocking theft and keeping anyone else from hitching up the trailer without a key. Double nickel-chrome lock housing and a shuttered keyhole keep dirt and moisture out.