All coupler locks are latch-type couplers and include two keys. Protect your boat, your camper and even your utility trailer with a coupler lock. This trailer pin lock is protected from the elements with its black painted finish, while the coupler pin is shielded against corrosion with a durable zinc plating. Features - Color: Black. - Material: Zinc alloy. - Size: 4.50X4.30X1.50cm/1.77X1.69X0.59in. - All coupler locks are latch-type couplers and include two keys. - Protect your boat, your camper and even your utility trailer with a coupler lock. - This trailer pin lock is protected from the elements with its black painted finish, while the coupler pin is shielded against corrosion with a durable zinc plating. - Easy to operate: this padlock-style trailer tongue lock is easy to install and simple to remove, and uses a simple 1/4 turn lock activation for convenient locking and unlocking as needed. - Widely application: Provides additional security for your camper, boat or trailer by securing the coupler on your trailer tongue, also secures trailer door latches, cargo boxes and other types of doors. Package list: 1 x Trailer Hitch Coupler Lock 2 x Keys