Rigid polypropylene card dividers with index tabs to organize your card collection. They fit fully in all standard-sized ULTIMATE GUARD card cases and boxes. 10 dividers per pack. The high quality and rigid material keeps your dividers durable and strong, even after many uses. This product is completely free of PVC and acidic materials and therefore ideal for collectible cards. Convenient write-on index tabs that help you keeping track of your cards and organizing your collection.