Preserve your information today & in the future. EverFile paper is a unique stock developed especially for the long-term preservation of your important documents. The folders are acid-free & lignin-free & remain chemically stable for 50 years or more. They won't cause your stored documents to age & become brittle. EverFile file folders are also treated with an antimicrobial coating to resist mold, mildew & associated odors. They meet PAT standards recommended for storage of photographic paper or film. Made from 11 point stock. Offers 1/3 cut assorted tabs.