Reese 5.25 inch drop Ball Mount

Reese 21794 5.25 inch drop Interlock ball mount for 2 inch receivers. A larger drop for low trailers of high tow vehicles. Interlock ball mounts have hexagonal recesses where the ball attaches. Interlock hitch balls have corresponding hexagonal bases that fit in the ball mounts. The ball mount effective becomes the wrench that holds the hitch ball while the ball is tightened.