Uxcell 4mm x 3mm 4 Pins SMD SMT Ultrathin Momentary Push Button Tact Switch (20 Piece) Product name : tact switch; action Type : Momentary Switch size : 4 x 3 x 1.8Mm/0.16" x 0.1 inch x 0.07"(L*w*t); material : plastic, metal, electric parts Color : Black, Silver tone Weight : 2G Package Content : 20 x tact switches