Lasting Construction & Performance: Our single electrical box is made of high-quality plastic materials, suitable for installation in commercial, industrial, or residential environments. It is built to last and provides reliable performance over time. Safe: Unlike other outlet spacers for distribution boxes, this outlet box extender supports safe and secure installation. Once installed, the non-metallic sidewalls fully surround the unit, creating an insulating barrier. Wide Applications: Our electrical box extenders are designed to extend electrical boxes to accommodate new or existing wiring. Function: Designed for easy and secure installation in single, double, and triple electrical boxes. Even with heavy equipment or wires inside, the 1-Gang Extension Electrical Box extends an electrical box to 1-1/2 inch, maintaining safety and stability across various electrical box types. Material: Plastic Color: White Package Contents: 6 x Single gang box extender 12 x Screws Note: Light reflection and different displays may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.