Feature:1. This button switch can be used in humid environments, come with waterproof function2. Push button switch is made of highquality metal material, sturdy and durable, antirust3. 16mm embedded push button switch has two terminals for easy installation, very convenient4. The ball shape designed switch is suitable for finger operation, useful and practical5. This metal push switch is a normally open button, support selfreset, easy to useSpecification:Item Type: Metal Push Button SwitchMaterial: Stainless steelWorking Voltage: 220v3C Rated Voltage Range: 36v and belowInstallation Size: Approx. 16mm / 0.6inContact Structure: Normally open buttonLight Source Type: No lightReset Method: Self-resetProtection Method: WaterproofButton Head Style: Round headOperating Position: Button headDome Size: Approx. 19 x 21.7mm / 0.7 x 0.9inDome Diameter: Approx. 11.6mm / 0.5inBottom Size: Approx. 21.8mm / 0.9in2mm / 0.1in.Package List:1 x Metal Push Button Switch