Descriptions:Feature: momentary contact, 4 pins.Used in the fields of electronic products, household appliances and more.High precision mechanism design offers operation and long service life. Product Name: Tact SwitchType:SPSTAction Type: MomentaryPin Number: 4Dimension: 5x5x2.5mm/0.2x0.2x0.1 inchButton Diameter: 2mm/0.08inchMaterial: Plastic, Metal, Electric PartsColor:Black, Yellow, Silver ToneNet Weight:8g Package Content:55(+/-2%)PCS x Tact Switch