Alrens 30PCS BE1-2 Electrical Outlet Box Extenders with 60 Screws, 1-Gang

VALUE-PACK: This set includes 30pcs electrical box extender and 60 screws, providing everything you need to create 30 set fully functional 1-gang box extenders. Ideal for adding depth to recessed electrical boxes and bringing outlets flush with the wall surface | MAIN FUNCTION: This outlet box extenders is designed for both portable electrical boxes and 4-inch square electrical boxes with gypsum rings, extending your box by up to 1-1/2 inches | DURABLE CONSTRUCTION: Made from high-temperature-resistant, 94VO-rated flame-retardant plastic, our outlet extender box offers excellent flame resistance and durability, ensuring long-lasting performance | FEATUREThis single gang electrical box extender offers self-leveling support for outlets, switches, GFCIs, and other standard devices, ensuring a secure and hassle-free installation | SAFE AND RELIABLE: The continuous, smooth, non-metallic sidewalls fully enclose devices, creating a protective insulating barrier between the device and the metal box for added safety