4 1-12" Flipper Rings that fit 2" flipper bats Meets or Exceed Factory Specifications Made of Factory Original Rubber Used in 99% of All Full Size Arcade Pinball Machines Direct replacement for use in Arcade Pinball Machines: Stern Pinball Machines, Williams Pinball Machines, Bally Pinball Machines, Jersey Jack Pinball Machines, Spooky Pinball Machines, Barrel Of Fun Pinball Machines, Gottlieb Pinball Machines, Multimorphic Pinball Machines Reference Part Numbers: Williams #23-6695, Stern/Data East #545-5277-00, American Pinball #RBR0002-01, Jersey Jack Pinball #25-002001-00 Not For Use: In Toy or Home Pinball Machines that have a Smaller Diameter Ball. 4 Pack of 1 and 1/2 inch standard size flipper rubber rings for most arcade (full-size) pinball machines such as Stern pinball machines, Jersey Jack pinball machines, American pinball machines, Williams pinball machines, Bally pinball machines, Spooky pinball machines. Will not fit small toys or non-full size pinball machines.