IP66 WaterproofWaterproof Wall Push Button has good waterproof and rainproof capabilities, making it ideal for outdoor use. Sturdy MaterialSwitch Push Button is made of ABS material, which is heat and low temperature resistant, anti fall, strong impact resistance and sturdy. Easy to UseWall Mounted Push Button is easy to operate. Built in LED indicator light for easy use. Wide ApplicationDoor button is suitable for homes, warehouses, backyards, shipping, bathrooms, kitchens, office buildings, ports, commercial places, etc., both indoors and outdoors. Easy to InstallWall Push Button, easy to install, you can easily install it on any surface. Specification:Single opening and single control Size Chart: 9cmx6cmx5.5cm/3.54inchx2.36inchx2.17inch Installation inner diameter: 5.5cm/2.17inch Package Includes: 1xWaterproof Wall Push Button Note: Please allow slightly errors due to manual measurement and different monitors.