Guardhouse 2x2, Nickel cardboard mylar paper holders are super clean, dust free and easy to staple. Guardhouse staple cardboard holders come in bundles of 50. Holds Nickels 2x2 and always line up, they fit nicely inside pocket binder pages. Cardboard Mylars are for long-term and safe storage of your coins. Ships FREE! A great gift idea for any Coin Collector!