Expanding files provide durable protection for the files stored inside, in addition to keeping paperwork organized. The holders are compact, secure and can expand to store large, growing files. Made from acid-free polypropylene. Organize documents by sorting pages among the dividers. Use the tabs to identify where information is stored. Secure closure keeps documents inside holder during storage and transport. For 8.5" x 11" document storage. Button and elastic closure. Pocket/Wallet Type: Files/Papers; Size: Letter; Overall Expansion: 1.63"; Closure Type: Cord & Hook.