Convertible1/2" to 5/8" Receiver Lock **ONLY 3 LEFT!**Convertible 1 2" to 5 8" Receiver LockKeep your ball mount from being stolen! Takes the place of the hitch pin and keeper clip that usually fastens the ball mount into the receiver. Comes with a lock installed on the end, covered by a water tight cap to prevent corrosion. Has a special 5 8" shaft to slip over the 1 2" shaft. 2 keys included. Versatile Convertible style fits either a 1 2" or 5 8" receiver.