4 Packs Square Electrical Box Cover with 1/2 Inch Knockout, 4 Inch Metal Junction Box Covers, Flat Outlet Box Plate with Angled Mounting Slots for 4 inch Square Box

Premium MaterialMade of thick galvanized steel, sturdy and durable, the metal 4" square box blank covers avoid bending or rusting easily, designed for long time usage | Standard SizeDiameter: 4inch, designed to cover 4 inch square box, make the electrical box safe and pleasing to the eye. These electrical box covers offer a 1/2 in. knockout in the center for easy access into the box | Easy InstallationAngled mounting slots compensate up to 12 degrees for box misalignment, allows for quick installation of cover without removing the box screws(no screws included) | Useful Home GadgetHouse switches or receptacles, help to prevent children or pets from accidental electrocution | 2 Year WarrantyIf you receive any broken item or have question, contact us any time and we will do our best to provide you friendly service