Features: This 86 type wire box template ensures accurate installation of sockets and switch, saving time and energy through accurate positioning and alignment. The socket bottom box is made of aluminium alloy, which is extremely sturdy, it provides term performances for both professionals and enthusiasts. Suitable for creating openings in switch socket boxes of various sizes, meeting different installation requirements. Clear markings and guidance make this template easy to use, simplifying the installation process with accurate reference points for accurate grooving. Suitable for homeowners, electricians, and contractors looking to achieve professional grade results in residential or commercial settings. Specifications: Component:Aluminium Type:3 Hole/1 Hole 3 Hole:Approx.258x90mm/10.15x3.54inch 1 Hole:Approx.90x90mm/3.54x3.54inch Package Includes: 1Pc 86 Type Wire Box Template note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.