This green flush button head with clear boot provides an ergonomic interface for controlling your machines. It provides also a simple solution to prevent dirt and contaminants. It is easily installed and replaced on compatible complete push button units and contact blocks via snap-fit assembly. It is clearly distinguishable visually at a distance thanks to illuminated head and clear colors. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. It makes it ideal for operation in harsh environments.