Reese 21793 3.25 inch drop Ball Mount
Buy Now: Reese Interlock Ball Mount D for 2" hitch receiver - 9.5" length, 3.25" drop, 2" rise
Reese 21793 5.25 inch drop Interlock ball mount for 2 inch receivers. Interlock ball mounts have hexagonal recesses where the ball attaches. Interlock hitch balls have 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. The side of the label shows the specs.