Round-ring binder features a PVC-free material that will not stick to cover inserts or materials stored inside. Material is archival-safe for all documents including photos and offers superior, cold-crack resistance to 5 degrees Fahrenheit. Clear, nonglare overlays on the front, spine and back hold your customized title sheets. Use free online templates to customize. Back-mounted, steel rings with dual opening and closing triggers allow sheets to lie flat. Horizontal pockets on the inside front and back covers secure loose, unpunched documents. Each pocket holds 40 sheets. Binder also features exposed rivets and a sturdy chipboard core. Binder is made with a high percentage of recycled post-consumer content.