Package Content: You will receive 4 pieces of 1/2 inch single-gang outlet box extenders for electrical boxes and outlet switches. Sufficient quantity will meet your daily use. Compact Design: Our outlet extension box fits snugly against the wall, ensuring no space exist. Neat and unobtrusive, it can seamlessly blends into any environment. Easy to Install: You don't have to disassemble the box or reposition the outlet box. Just install this outlet box extender in your existing outlets and you can extend your options. Product Material: Made of good-quality ABS material, sturdy, reliable and long-lasting. It is perfect for construction and home improvement. If the box on the wall is exposed, this extender will always fit. No need to change anything to extend the box. Multipurpose: Our receptacle extender fits any outlet box styles, such as PVC, metal, fiberglass, work, old work, etc. Please note:Slight color difference or difference in kind, does not affect the use, please do not mind, thank you! Colour:Blue/Gray/Black Material:Plastic Package Contents: 4 * 1/2 Inch Single Gang Outlet Box Extender 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.