Circular shape metal dome reset switch 3 4 4.5 5 6 7 8 9 10 12 14 16 mm micro membrane switch SPST Momentary On/Off Tactile Push Material: stainless steel Life: 1000,000 times Size: Diameter,Choose to order Rating:DC12V 50mA Operating force:250 to 350g ForceC enter Dimple: With Dimple commonly (May no dimple for stock) Mixed orders welcome! OEM orders welcome! NOT from China Open Market?