DESIGNED TO STOP THE DRAW TUBE PUSHING BACK AND APPLYING THE BRAKES WHEN REVERSING.
IT IS A MANUAL AID, NOT AUTOMATIC.
IDEAL FOR USE ON MODERN COUPLINGS WITHOUT AUTO REVERSE BRAKES.
ALSO WORKS WITH AUTO REVERSE BRAKES THAT MAY LOCK WHEN REVERSING.
EASY TO FIT AND BOLTS INTO PRE DRILLED HOLE ON TOP OF COUPLING.