Avery Poly Binder Assorted Pocket made of PVC-free poly material protects your pages and resists tearing on the rings even with repeated use renders magnificent durability. Acid-free, archival-safe pocket will not lift print off pages allows you to store papers for long periods. Binder pocket can store more than 2 sheets of letter-size paper in a 3-ring binder without punching or folding. It is 5 per pack.