3 Gang, Draft Tight Electrical Outlet Box, 54 CUIN, 3-1/2″L x 5-5/8″W x 3-1/4″D, Angled Side Nails For Mounting, For Use With Non-Metallic Sheathed Cable, V-Clamps Provide Self Clamping Cable Entry, High Strength Black Polycarbonate Withstands Temperature Extremes, Features A 1/2″ Offset Flange To Ensure A Flush Fit In 1/2″ Drywall, Foam Gaskets Over Cable Entry Points Provide Draft Tight Seal Preventing Flow Of Air Through Box, UL Listed, Meets Energy Efficiency Requirements For New Homes.