Custom Jumbo Size Double Decora clear acrylic mirror switch cover plate with highly polished beveled edges. Used when extra coverage is needed around outlet opening. Used to cover GFI Outlets and Rocker Switches. The gasket backing provides for a flatter installation by preventing warping. Complete with bright plated mounting screws. 1/8" Thick acrylic with 1/8" Thick gasket perimeter backing. 6" X 6" Overall Size.