Press-N-Snap rubber retainer gasket manufactured by Hoover Industries in California is compression fitted on both Press-N-Snap's Button die, Eyelet die and Gypsy Stud Dies and holds the same type of snap fasteners in place on 2-piece snap fastener die sets. The key to the Press-N-Snap tool's popularity is this rubber grip ring. If the ring was not in place to hold the other piece of a snap fastener on the die, the tool would be too hard to use setting snaps without this hold. Over time the ring dries out and cracks or losses its elasticity and falls off and needs to be replaced every 2 - 3 years.
NOTE: Does not fit Baby Snap Dies.