This mushroom shaped push-button is ideal for situations where quick actions are required for a process or machine to function correctly or where operator movements require maximum ergonomy,It is clearly distinguishable visually at a distance thanks to its prominent mushroom shape,It is impact resistant, dust resistant, water resistant and vibration resistant, making it ideal for operation in harsh environments,It is easily installed into a standard 30mm diameter panel cut-outs and connected with simple screw-clamp connections,High performance International standards & certifications (Marine ABS certification, Type 1, 2, 3, 3R, 4, 6, 12 and 13)