Features Premium Material The switch button housing is made from premium ABS and PC materials, so it is waterproof and durable for long time use. Convenient use: can be applied to ships, textile fields, printing equipment, automation, cranes, instrumentation, etc. Better Control: can be used for remote control of AC contactors, electromagnetic starters, relays, etc., very convenient. 5 Holes Design There are 5 holes on the control box, which perfectly match the buttons, making the operation more convenient. Easy to Install The control box is lightweight and small in size, making installation and operation much easier. Specification: Item Type: Push Button Box Material: ABS, PC Overall product size: approx. 25 x 7 x 6.5 cm / 9.84 x 2.76 x 2.64 inches Central hole opening: approx. 22.5 mm/0.89 inches, 5 pieces Side hole opening: approx. 21.8mm/0.86inch, 2pcs Bottom hole diameter: approx. 19 mm/0.75 inches, 2 pieces. Mounting hole opening: approx. 4.8mm/0.19inch, 4pcs List of packages: 1 x Push Button Box Cover 1 x Push Button Box Base 4 screws Small note: Match the appropriate size before installation and use. Package List 1 x Push Button Box Cover 1 x Push Button Box Base 4 x Screw