The Cruisemaster™ DO65 is shown here with optional Mounting Bracket and Pintle Ring (available separately) offers longer life and quiet operation for your trailer than the standard NATO ring coupling and pintle hook. The key to this ingenious design is to separate the ball movement from the coupling. Unlike the normal pintle hook arrangement there is no play between the two allowing for quiet operation, reduced wear and longer life especially when operating under arduous conditions. In addition the coupling does not bind up when reversing in tight situations.