Description : AVE75537 Environmentally sound - Made with 60-75% pre-consumer recycled polypropylene. Acid-free, archival-safe, nonstick material won't lift print. Three-hole punched, allowing you to store unpunched inserts. Special design allows easier insertion of pages while keeping documents secure. Global Product Type: Sheet Protectors; Insert Size: 11 x 8 1/2; Load Orientation: Top; Sheet Capacity: N/A.