Heavyweight protection for documents and brochuresInert polypropylene protectors won't crack, scratch or tear. Protectors allow you to insert documents into 3-ring binders and albums without punching any holes. Heavyweight protectors are 3-hole punched.Available in 4 styles.50 per package.Protector Options: Part Number Style Opening 08013 A4 Top 62020-1 High Capacity (hold 50 pages) Top 62018 Non-glare Top