Zinc-plated solid steel. An exclusive Quick-Lock ball clamp assembly that can be adjusted without the need of wrenches. Provides a precise fit on the hitch ball for proper towing. The trigger action release on the ball clamp assembly allows fast locking and unlocking of the ball clamp for convenient hitching. The safety lever snaps shut and cannot unlatch by itself. Safety pin can be inserted through a hole in the lever to provide a secondary means of securing the ball clamp in a locked position. A padlock may be substituted for the pin if security against trailer theft is needed. Meets all requirements of the SAE and VESC V-5 standards for Class I, II, and III.