The Ultra PRO deck boxes are made from acid-free, PVC-free materials and are designed to store and protect your collectible cards. These boxes are intended for sleeved cards in standard size or smaller. The deck box is a compact, cost-effective way to carry, organize, and store your decks with up to 80 double-sleeved cards. On top of the box, there is an area where you can label it with a permanent marker.