1/2" x 1" x 1/4" Blue Rubber Pad With Adhesive Backing
Ships from US and is sold by Pinball Life$0.75
1/2" x 1" x 1/4" blue rubber pad with adhesive backing.
Used on (not a complete list):
Diner
Whirlwind
Hurricane
Funhouse
Party Zone
Bugs Bunny's Birthday Ball
Williams/Bally reference #23-6645.