Coupler Lock, Lock Type Universal, For Use With Most Couplers, Hole Diameter 1 7/8 in, 2 5/16 in, 2 in, Vehicle Class I, II, III, IV, V, Features Keyed Alike, Ratchet Design with Eleven Locking Positions, Secures Trailer When Not Being Towed, Universal Fits All Couplers, Includes (2) Keys, Finish Powder Coated Yellow