200 Count Diamond-Clear EXTRA-HEAVYWEIGHT Poly Sheet Protectors, 8.5" x 11". Archival safe and acid-free. Top loading for easy page insertion. Durable, nonstick, and non-glare. 3-Hole punched margins have double-reinforced edges for added durability. Sturdy box for storage. 200 Count Diamond Clear EXTRA HEAVYWEIGHT poly sheet protectors, 4 mil thickness, 8.5" x 11" in a sturdy box CLEAREST AND STRONGEST SHEET PROTECTORS! Archival safe and acid free; Top loading for easy page insertion Durable, nonstick and non-glare 3-Hole punched margins have double-reinforced edges for added durability