This took all the looseness out of my hitch receiver. Note that in one reviewer's photo he had the plate and nuts on top. This would pull the hitch ball assembly up and put all the tongue weight on the stabilizer and is incorrect: the plate and nuts have to go on the bottom to pull the hitch down. I lubed the threads to ease tightening and prevent the threads from stripping, as one reviewer claimed happened (probably from over-tightening), and added self-locking nuts in case the included nuts and lock washers worked themselves loose causing the stabilizer to fall off unnoticed. An incredible deal for well under $20. I had no idea these things existed and wow, what a difference. Pulling my empty utility trailer is now a pleasure!