High-quality electrical outlet box extender suitable for a variety of applications: Our electrical box extender is designed to provide a solution for extending electrical boxes plastic to accommodate new or existing electrical wiring Compliant with industry safety standards for a safe and secure installation: Unlike the other outlet spacers for electrical boxes BestMounts electric outlet box extender is compliant with industry safety standards and certifications, ensuring a safe and secure installation Designed to fit easily and securely in single, dual, and triple gang electrical boxes: even with heavy equipment or electrical wiring inside,1 Gang extending electrical boxes, used for extending electrical boxes up to 1-1/2-inchesBestMounts electrical outlet box extender will remain secure and stable in a variety of electrical boxes Durable construction for long-lasting performance: install it in a commercial, industrial, or residential setting, our single-gang electrical box is b