【Precise Size Compatibility】Single socket spacer specifically engineered for standard 86mm × 86mm switch and socket installations, with a height of 20mm. Provides ample clearance for socket mechanisms, accommodating single-gang switches and sockets. 【Quick Installation, No Rewiring Required】20mm black single socket spacer features pre-drilled mounting points for secure installation. The straightforward process requires no rewiring and can be completed in minutes, saving installers considerable time and effort. 【Robust Construction, Practical Design】The black sockets crafted from durable ABS plastic with rounded edges and a reinforced black frame structure. Not only protects walls but also provides ample internal space for switches and sockets, ensuring a neat and secure installation. 【Versatile Application Scenarios】Ideal for smart switch retrofits, compatible with thickened walls such as tiled surfaces, plasterboard, or acoustic panels. Resolves uneven wall depths during single-gang switch or combination extension box installations without requiring wall chiselling or surface adjustments. 【Flat, Flush-Fit Finish】Black socket spacer designed for single-gang power sockets, compatible with modern switches and smart home devices. Push the switch panel flush with the wall surface for a clean, professional installation finish – the ideal choice for professional fitters and DIY enthusiasts alike., Manufacturer: Koprek