A trailer hitch ball is the towing component that attaches to the ball mount and provides an attachment point for the trailer coupler. The trailer coupler sits on top of the ball and is locked into place. The ball allows the trailer to pivot to provide smooth turning while towing. Trailer hitch balls are sold in various shank lengths and diameters, ball diameters and weight capacities to meet your towing needs. Whatever your need, requirement, and budget you can count on finding the right equipment at an affordable price at Rite Products.