HuaYang 2 Pin Rounded Power Self-locking Panel Amount ON/OFF Push Button Switch(5Pcs ; Green) Rounded Power Switch with Self-locking Normally Open Panel Amount Mounting Type: Panel Amount Circuit: Rounded Button with Self-locking; Aperture: 10 mm Self-locking: The switch will be turned on after pushing the button on, and it can not die out without your second press Package included:5pcs * Rocker Switch