Sonoff Quadruple Mounting Frame for Installing M5-80 Wall Switches A special mounting grille designed for installing Sonoff M5-80 wall switches. It allows you to create a neat and aesthetic, and above all evenly made installation consisting of four wall switches. Specification: Manufacturer: Sonoff Number of sockets: 4 Color: Black Material: PC V0 Dimensions: 29.9 x 8.6 x 14.8 cm