Product Introduction waterproof Aluminium Alloy Metal Push Button Switch box Outdoor power control Box Package Include 1* Aluminum Push button Switch Box Product Introduction Item : Aluminum Push Button Switch Dimension :45*45*66.5mm Hole Size:16MM/19MM/22MM Usage": Only suit for metal push button switch Product Type: Aluminum box 16mm Aluminum box 19mm Aluminum box 22mm Aluminum box with ear 22mm Aluminum box with ear 19mm Aluminum box with ear 16mm Product specifications: 45*45 high for metal buttons, Opening diameter: 16mm, 19mm, 22mm, unopened Product Overview: The series of button box housing materials are aluminum alloy, and the side panel material is anti-corrosive engineering plastic. It has the characteristics of corrosion resistance and high strength. Can be used with button products. Can also be used as an industrial control cabinet for power transmission and distribution lighting The default aperture is 16-22MM, which is single or porous.