This emergency stop / shutdown button head is easily combined with contact blocks and installed into standard 22mm diameter cut-outs. It comes with antimicrobial characteristics. It is clearly distinguishable visually at a distance thanks to a clear color and a prominent 32mm red square push button. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66 / IP67, IP69 / IP69K, making it ideal for operation in harsh environments.