Each kit rebuilds 2 flipper mechanisms.
Used in the following Data East machines:
Jurassic Park
Last Action Hero
Tales from the Crypt
Tommy
WWF Royal Rumble
Guns N' Roses
Maverick
Used in the following Sega machines:
Mary Shelley's Frankenstein
Baywatch
Batman Forever (early production)
Please note: Some of the parts you are replacing my be goldish in color. The process that turned these parts this color contained lead. Your replacement parts may be "clear zinc" so as to not contain lead and to be RoHS compliant.
Data East/Sega Reference #500-6306-20.