7/16" ID inner diameter white - also used for mushroom bumper
Williams Part No. #23-6599
DE/Sega/Stern Part Nro #545-5025-03 , #545-5025-18 , #545-5348-68
Stern old Part No: #A-10218
Gottlieb® Part No. #A-17493
Bally alt Part No. #R-392
Capcom Part No. #RB00108-04
Jersey Jack Pinball Part No. #25-002003-07-09 , #38-0012
