All 2 gang boxes come with detachable lugs, 2 close-up plugs, and self-tapping ground screw. 4.5 x 4.5 x 2.0 inches deep. Heavy duty die-cast aluminum, .094 inches thick, with powder finish. For use in all indoor and outdoor damp or wet locations, with all standard FS, outlet, lamp holder or splice box covers. UL listed and CSA approved. Comply with Federal Specification AA-50563.