Avery Products - Avery - Multi-Page Top-Load Sheet Protectors, Heavy Gauge, Letter, Clear, 25/Pack - Sold As 1 Pack - Expanding holding capacity. - Acid-free, archival-safe, nonstick material. - Diamond clear cover. - Three-hole punched. - Diamond clear heavy polypropylene multi-page capacity top loading ring binder sheet protector fits 11 x 8 1/2 inserts. Expanding holding capacity. Acid-free, archival-safe, nonstick material. Diamond clear cover. Three-hole punched.