The PetSafe SmartDoor Wall Entry Conversion Kit makes it easy to install your small PetSafe SmartDoor (PPA11-10711) into an interior or exterior wall. It consists of a two-piece molded frame with a protective outer lip. Features: 18.39" x 13" x 6.12". Frame is impact and UV-resistant with telescoping option. Fits walls 4.33"-7.25" thick. Includes: Inside frame and outside frame. 4 machine screws and 14 wood screws. 4 lock washers, 14 washers and 4 hex nuts. Cut-out template. Installation instructions.