Color: Black Dimensions: 21 x 19 x 19 mm Diameter of the thread: 16 mm Rated power from the switch: 3A/ 3V-250V Automatic reset; Switching the first pressure; Off at the second pressure Package Contents: 10 x horn switch 10 x Rubber Ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.