The Morris Products Box Extension measures 4x2x1-1/2 inches and features a convenient 1/2-inch knockout (KO) for easy wiring access. This extension box is designed to provide additional space for electrical connections, making it ideal for use in residential and commercial electrical installations. Constructed from durable materials, it ensures long-lasting performance and compliance with industry standards. The compact design allows for seamless integration into existing setups, providing a reliable solution for extending electrical boxes without compromising safety or functionality.