Pinball Arcade Cabinet Flipper Button - 1-3/8" Shaft - Red - 2 Pack: 1-3/8" shaft cabinet flipper buttons used on pinball machines from the late 1970's to the late 1980's. Used in many video gaming cabinets from the same era - late 1970's and 1980's. Item is measured from the inside lip of the button to the tip. Be sure to measure your old flipper button before ordering to confirm correct size. Color - Red. Williams reference numbers 3A-7531-5 and 3A-7531-9. Stern reference numbers A-711 and A-711-1. Gottlieb reference number 24293Z.