Drafttight, 3.53"D x 2.46"W x 4.2"H, Single Gang, Old Work Electrical Box, 18 CUIN With Swing Ears For Easy Mounting In Existing Construction, Use With Non-Metallic Sheathed Cable, High Strength Black Polycarbonate Construction For Easier Installation Will Not Break Or Bend In Extreme Conditions, Meets Energy Efficiency Requirements For New Homes, Features Flexible Drywall Flange That Seals the Front of Box to the Wall Surface To Ensure A Flush Fit, Foam Gaskets Over Cable Entry Points Provide Vapor Tight Seal Preventing Flow Of Air Through Box, V-Clamps Provide Self Clamping Cable Entry, Features Flashed Over GFCI Cover Screw Holes, UL Listed.