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: 4.5x4.5x3.8mm/0.18x0.18x0.15 inchButton Diameter: 2.4mm/0.09inchMaterial: Plastic, Metal, Electric PartsColor:Black, Black, Silver ToneNet Weight:3g Package Content:10PCS x Tact Switch