This stamp makes it quick and easy to add perfectly aligned reinforcement stickers to the holes of your binder paper. Just slide the base plate underneath the paper, line up the guide bump with the hole, and press down gently on the top of the stamp. Use the stickers to fix torn pages or stop tears before they begin. Features: This stamp comes with 200 reinforcement stickers included. The stamps have an inner diameter of 5.5 mm and an outer diameter of 14.5 mm.