6×6×4.3/ 4.5-12mm Momentary Tactile Push Button Switch SPST Mini Micro Small PCB
These are differentiated by the length of the button. Length of button: 4.3mm 4.5mm 5mm 6mm 6.5mm 7mm 7.5mm 8mm 9mm 9.5mm 10mm 11mm 11.5mm 12mm. 6×6×11.5mm 6×6×12mm. Pin: 4 Pin. Pin Material: Copper.