PVC-free, non-stick poly material will not damage contents. XtraLife® Hinge prevents tearing along seams. Non-locking round ring with triggers mounted on back cover. Pockets inside front and back covers. Cover board made from 100% recycled fiber with at least 98% post-consumer fiber. 240 Sheet Capacity. 1" Black. Fits 8-1/2" x 5-1/2" sheet size.