Description:Surface Mounted, waterproof sealed plastic electrical enclosure switch push button box.Its main material is durable and impact-resistant plastic.Better waterproof and Anti-corrosion performance; protect your instruments even under an adverse environment.Button switch box can be installed on the wall or equipment, good for electronic projects, power supply units, projects, amplifiers, equipment control and signal indication, etc.We sell different size at the same time. Features:Product Name: Push Button StationMain Color: White and BlackButton Hole Number: 4Button Hole Size: 22mm/ 0.86"Outlet Hole Diameter: 20mm/ 0.79"Screw Hole Diameter: 4mm/ 0.16"Inner Effective Size: 161 x 54mm / 6.34" x 2.13" (L*W)Total Size: 195 x 71 x 65mm / 7.68" x 2.8"x 2.56"(L*W*H) Package Content:1 x Push Button Switch Box.