Metal Electrical Box Cover Plates,Electric Junction Box Cover Plate [4 Pack Electrical Box Covers] Metal electrical box covers plate are used to cover electrical boxes and junction boxes to prevent children or pets from accidental electrocution. [Wide Adaptation] The junction box covers are square with 4 inch sides, suitable for most electric box cases. Square Blank Panel is an ideal cover for 4 inch electric boxes, angled mounting slots compensate up to 12Inch for box misalignment. [High-Quality metal Materials] These metal electric box cover plates are made of heavy galvanized iron plates, sturdy and durable, waterproof and rust-proof, flame-retardant, high-temperature resistant, will not crack or fade, and can be reused, economical and practical. [Easy To Install] These electrical box covers are extremely simple to use. Simply place the cover over the hole and install it by tightening the screws into the junction box. Junction box covers are perfect for covering up errors, such as tears or defects, or simply covering electrical boxes that are in use or unused. Colour:Silver Material:Metal Package Contents: 4 * Electrical Box Cover Plates Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.