Features: Material:ABSMetal Voltage:660V Current:10A Action Type:Self Locking Contact Type:1 NO, 1 NC Opening hole: 22mm Mounting aperture: 54x48mm Size: 78x72x64mm Description: 1. Explosion-proof anti-corrosion waterproof, in the oil, high temperature and other harsh environment can also be a good performance. 2. ABS flame retardant material button box, strong and secure 3. Waterproof rubber ring, strong sealing, prevent water droplets penetrate switch 4. High degree of protection and emergency stop for freight and elevator. 5. The stop sign is eye-catching enoufh to be saw at rmergency. Package List: 1x Set of Emergency Stop Button Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.