Preserve your information today and in the future. EverFile paper is a unique stock developed especially for the long-term preservation of your important documents. Folder with fastener is acid-free and lignin-free and remains chemically stable for 50 years or more. Won't cause your stored documents to age and become brittle. File folder is also treated with an antimicrobial coating to resist mold, mildew and associated odors. Meets PAT standards recommended for storage of photographic paper orfilm. Folder has 1/3 cut tab and contains two 2" fasteners in positions 1 and 3.