Heavy Duty Sheet Protectors 8.5 X 11 Inch, 3 Mil Thick Clear Page Protector for
Heavy-Duty 3 Mil Sheet Protectors: Made from 3 mil thick, PVC-free and acid-free polypropylene. These non-stick sheet protectors are stronger and more durable than standard sleeves. Sheet Protectors for 3-Ring Binders: Pre-punched with 3 holes down the side to fit any standard 3-ring binder.