The 4-11/16" Square Extension Ring with 2-1/8" Depth and 1-1/4" Knockouts from Southwire is designed for enhancing electrical box installations. Constructed from high-quality materials, this extension ring provides durability and stability. Its design features multiple knockouts for easy wiring access, making it versatile for various applications. This product meets industry compliance standards, ensuring safety and reliability in electrical installations. Ideal for both residential and commercial use, it simplifies the installation process while maintaining a professional finish.