Red Dot IHE Device Outlet Box Extension Ring, 1 Gang, 2-13/16-Inch Width by 1-Inch Depth by 4-9/16-Inch Height, Silver Die cast construction and industrial design combine to product a rugged protective enclosure for devices Clean cover edges provide good gasket sealing Precision cast and machined surfaces permit safer wire pulling Convenient mounting lugs for a variety of mounting methods Securely fastened mounting plates reduce costly call backs