Kit includes gasket and mounting hardware, closure plugs and self threading ground screws. Bubble Cover has a Patented Multi-Configuration Design: Gang can be used horizontally or vertically, with up to 18 configurations, wheter GFCI, Duplex, Switch, or Round. Outlet Cover is made of durable polycarbonate construction, lockable and easy to install, and fits full size padlock. Outlet Box is constructed of heavy duty die-cast aluminum with a weatherproof powdercoat finish to protect it from the elements. Keeps rain and dirt from disrupting any electrical circuit. Outlet Box has Three (3) 1/2 Inch Outlet Holes. Heavy duty die-cast aluminum construction with a weatherproof powdercoat finish to protect it from the elements. Keeps rain and dirt from disrupting any electrical circuit.UL Listed. While-in-use bubble cover is UL Extra Duty Compliant (for Wet Locations, National Electrical Code 406.9 (B)(1)). NEC Compliant, UL File No. E362580 Outlet box is 2-Inch Deep. Outlet Cover is 3-1/4" deep.Outlet Box has Three (3) 1/2 Inch Outlet Holes. Heavy duty die-cast aluminum construction with a weatherproof powdercoat finish to protect it from the elements. Keeps rain and dirt from disrupting any electrical circuit. Sealproof 1-Gang Weatherproof Exterior In Use Outlet Cover and Box Kit - Single Gang Metallic Electrical Outlet Box with Three 1/2-Inch Holes and UL Extra Duty, Lockable, In Use Outdoor Outlet Cover