Wall box designed with the electrician in mind. Versatile in new work locations where you can't swing a hammer or where final wall surfaces are uncertain. Features heavy-duty, 42-pound interior mounting screws which allow for depth adjustment to accommodate tile, paneling, and other specialty wall treatments. Ideal for new or old work applications because it is always mounted to a stud. Extra thick PVC (polyvinyl chloride) wall material for stability and rigidity. 1-piece molded construction with no moving parts to break or lose. Includes built-in wire clamps. All 6/32 device holes are threaded. Mounts to wood or metal stud 25g.