This RV door lock has a built in deadbolt to provide that extra security. Designed for travel trailers, it will also work well with cargo haulers, horse trailers or custom utility trailers. It will fit door thicknesses from 1-1/4 inch to 1-1/2 inch finish. Made from durable zinc die cast metal. Includes door edge cover plate, strike plate and mounting screws. 1 lock per box. Black in color.