Cardboard coin holders are a favorite holder of many coin collectors. Every cardboard holder we sell is archival safe and PVC free. CoinSupplyStore.com sells two types of cardboard holders, staple and self sealing. The staple type holder is probably the most widely used holder in all of collecting. To use the staple type holder just insert a coin, fold over and staple. The self seal has not been around as long as the staple type, but they are quickly gaining popularity. For the self sealing holders, peel off the backing, insert a coin, then fold and press to close. Both types of holders are very easy to use. We also carry many items to store your cardboard coin holders such as storage boxes and pocket pages.