AP Products Bauer Travel Trailer Lock Black. It features SCI technology which helps prevent tampering with lock cylinders. Corrosion resistant lightweight UV resistant fits into 2-3/4 x 3-1/2 cutout protective cover for lock cylinder. Directly replaces most entrance locks on travel trailers and 5th wheels. Features of AP Products Bauer Travel Trailer Lock All-metal lock with keys Features SCI technology which helps prevent tampering with lock cylinders Corrosion resistant lightweight and UV resistant Fits into 2-3/4 x 3-1/2 cutout Directly replaces most entrance locks on travel trailers and 5th wheels Package Contents: AP Products Bauer Travel Trailer Lock AP Products 013-688: Bauer Travel Trailer Lock Black