I am using this on a Curt receiver and the length is perfect. It appears to be of high quality construction (with a bit if weight to it) and this design prevents any rattling on bumpy roads. My only complaint is that it gets rust buildup inside the lock mechanism after a few months, so you need to clean it periodically.Update:A great deal of dirt has found its way into the lock mechanism so I guess the fit is not secure like it should be. Also it is now rusting which I find a bit odd in all stainless construction. I see the head design has changed based on the new picture here so maybe the issue is fixed now.