16/19/22mm CNC Metal Button Switch Self-Locking Emergency Stop Waterproof Mushroom Head Device Stop Button Engraving Router
https://www.vogueparade.com/shopping/EN/4338/1/1005003737202999/161922mm-cnc-metal-button-switch-self-locking-emergency-stop-waterproof-mushroom-head-device-stop-button-engraving-router//