Description: Waterproof metal momentary Push Button Switch Mounting Hole Size: 19mm Diameter Switch Rating: 2A / 250V AC Circuit: SPST Operation Types: Momentary type: push it-- on, release it -- off , self return Material: Alloy Degree of Protection: IP67 Package Includes: 1 Piece Push Button Switch Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !