AC-DK 2 Pack Trailer Hitch Locks, 1/2" Dia 3-1/2" Long Pin, Fits Class I,II Receiver, 6 Keys,10 O-Rings,2 Safety Clips,Anti-Theft,Waterproof，Keyed Alike Hitch Pin Lock for Tow Truck,Bike, Car, Boat

EFFECTIVE ANTI-THEFT: Our trailer hitch locks with keys set is designed with more secure zinc alloy lock cylinder and round key, effectively preventing theft! Upgraded plum blossom keyhole and 2 safety clips, which can bring your trailer a safer experience!