Sullivan S560 Ball Connector w/Sleeve 2-56

This is a strong and reliable ball joint and is probably the easiest to install
unhook, and adjust. The quick-release locking sleeve with its glass filled
nylon socket locks the ball securely and eliminates play. Yet is allows a
range of off-axis motion and pivots freely. It can't vibrate or wear loose
either. And the ball is constructed of nicked plated steel for extra strength.