RAM Mounts RAM-B-463-TRA1U mounting kit

The RAM® Track Ball™ is made up of a C size 1.5" ball molded to a marine-grade aluminum base, a rubber friction washer and a stainless steel T-bolt for sliding into virtually any track system. Simply insert or slide the Track Ball™ into your track and twist the ball clockwise to tighten in place. Twist counterclockwise to loosen or adjust the ball.