Speed up your coin holdering process using our Supersafe brand self-adhesive 2x2 coin holders. Just peel off the backing, insert a coin and press to close. Save time from not having to staple and reduce risk of staple damage. The holders are made of all archival materials and include no PVC or harmful additives. The non-migrating self adhesive gives an air tight seal to protect your coins. Supersafe coin holders also feature a convenient tab for easy handling This Master Pack is an assortment of a pack of 50 holders for each of the 10 sizes available (500 holders in all).