The Sanwa Arcade pushbutton w/ slight convex plunger. Manufactured in Japan and equipped with short, non-clicking microswitch (SW-68). These are the exact OEM Professional Sanwa Buttons on the Mad Catz Limited Edition Tournament Edition Street Fighter IV/4 Arcade Joystick/FightStick. The Mounting diameter: 30 mm (1.181 inch), snap-in action (no thread, no screwing). Overall diameter: 33 mm (1.3 inch), installation depth: ca. 32 mm (1.26 inch), breadth of the microswitch terminals: 2.8 mm (0.110 inch). Can be mounted in material with a thickness from 2 to 4 mm (0.08 - 0.16 inch). Enclosed are: button and Sanwa microswitch.