Molded with 90% recycled polypropylene that's 100% recyclable (both ring and cover). This means no disassembly is needed to recycle. Heavy-weight construction with durable living hinge has been cold-crack tested to 10 degrees and so durable, it's guaranteed five years not to crack or break. One touch trigger opens ring to two positions: halfway for easy page viewing and completely for loading. Ergonomic grip on the spine makes shelf removal easier. Clear overlay on front cover and oversized label holder on spine. Non-stick and archival-safe. Capacity Range [Max]: 2"; Sheet Capacity: 350; Color(s): Black.