Features: Crafted from premium galvanized irons with uniform thickness, this rust resistant electrical box ensures long term stability without corrosions or deformation, featuring precise 81mm screw hole alignment for quick, secure outlet installation. Equipped with a standard 22mm knockouts perfectly sized for conduits, this metal junction box delivers smooth wire routing and seamless conduit integration, meeting various wiring requirements effortlessly. Ideal for professional electricians and experienced DIYers seeking reliability, code compliant solution for residential and commercial electrical projects requiring durability outlet mounting. Versatile for wall or ceiling installations in homes, offices, and industrial settings, it seamlessly accommodates lighting fixtures, switches, and other electrical devices with its compact 101x40x54.5mm design. Engineered for effortless embedding and robust performances, this light weight 195g outlet box combines durability with practical functionality for electrical setups. Specifications: Dimension:10.1×4×5.4cm/3.98×1.57×2.15in Component:Galvanized irons Package Includes: 1pc metal bottom box note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.