All hitch locks have a common weakness; they can easily be broken and removed with a hammer or a pipe slid over the lock and twisted off. The anti-rattle hitch lock protector serves two purposes. First, it prevents a thief from gaining access to the removable lock tumbler by means of a hammer, pry bar, or pipe, eliminating the ability to break the hitch pin. This ensures the hitch pin lock can do the job it was intended to do, protect the hitch from being removed from the receiver tube. Secondly, it provides a method to clamp the hitch tube to the receiver tube eliminating the movement of the hitch each time you brake, accelerate , or hit a bump. Enjoy a quieter, smoother ride and added protection for your hitch lock with our easy to install anti-rattle hitch lock protectors.