- rigid polypropylene the high quality and rigid material keeps your dividers durable and strong, even after many uses
- Acid free, no PVC this product is completely free of PVC and acidic materials and therefore ideal for collectible cards
- Write-On index tab convenient write-on index tabs that help you keeping track of your cards and organizing your collection
- 100-Percent archival safe keeps your cards safe and preserves the value of your collection during permanent storage