All 3 gang boxes come with detachable lugs, 2 close up plugs, and self-tapping ground screw. 4.5 c 6.375 x 2.625 inches deep. Heavy duty die-cast aluminum, .094 inches thick, with powder finish. For use in all indoor and outdoor damp and wet locations, with all standard FS, outlet, pr splice box covers. UL Listed and CSA approved; meet all applicable Federal specifications.