uxcell Push Button Switch Control Station Box 22mm 1 Button Hole Waterproof 78 x 71 x 64mm Product Name: Push Button Station; Button Hole Number: 1; Material: ABS Button Hole Size: 22mm/ 0.86"; Screw Hole Diameter: 5mm / 0.2"; Main Color: Black and White Package Content: 1 x Push Button Box; Total Size: 78 x 71 x 64mm / 3.07" x 2.8" x 2.52" (L*W*H) Waterproof IP64. Good for electronic projects, power supply units, student projects, amplifiers, etc. Better waterproof and Anti-corrosion performance; protect your instruments even under the adverse environment.