Easyget Happ Style Ultimate 1player / 2player Start Push Button with Microswitch for Mame Jamma & Arcade Game Machines Microswitch reliability tested to 10,000,000 cycles Adjustable shaft length for metal or wood mounting Ideal for use within 3/4" wood control panels Horizontal attached microswitch with .187" (4.8mm) terminal Mounts in 28mm hole