Switch-Device Outlet Box Extensions (Nonmetallic): Type - Switch Outlet Box; Application - General; Number of Gangs - 2; Depth in inch - 3.38; Width in inch - 4.00; Height in inch - 3.75; Capacity - cu-in - 34.0; Mounting Hardware - Bracket, Adjustable Offset; Cable Entry - (4) NM Integral Clamps; Material - Plastic; Device Mounting Holes - Standard; Manufacturer Series - Adjust-A-Box