Prevents distracting glare especially in fluorescent light. Special design allows easier insertion of pages while keeping documents secure. Acid-free archival-safe nonstick material won't lift print off inserts. Three-hole punched allowing you to store unpunched inserts. Load Orientation: Top Sheet Capacity: 10 Sheet Protector Type: Ring Binder Insert Size: 11 x 8 1/2.Unit of Measure : Box