Install switches or receptacles in a recessed wall with these Iberville device boxes. The device boxes have positioning tabs, provision for external nailing and two embossed mounting slots for internal screws to ensure secure and easy installation. Made of galvanized steel, the device boxes are 3" deep and have a 15 cubic inch capacity. The rectangular device boxes are gangable so you can easily join more than one box together. The pack conveniently includes 4 device boxes.