Reyann 8 X 30mm Arcade Push Button + 2 X 24mm Arcade Push Button Perfect Replace Sanwa Obsf-30 & Obsf-24 Push Button for Mame Jamma & Arcade Other Fighting Games - 6 Colors Available 8x 30MM Arcade Push Button + 2x 24MM Arcade Push Button Kit. Perfect replace for SANWA OBSF-30 & OBSF-24 Series Push Button. Microswitches included inside the Button. High Quality Replacement Push Buttons. 6 Colors Available,Accept Mixed the colors.