20Pcs B3F-4055 12x12x7.3 mm Tactile Switches brown Square Push Button Tact Switch 12*12*7.3 mm Micro switch thermostability

20Pcs B3F-4055 12x12x7.3 mm Tactile Switches brown Square Push Button Tact Switch 12*12*7.3 mm Micro switch thermostability