Standard top tab format for easy integration into most filing systems. Heavy-duty pressboard covers and reinforced, tear-resistant expansion gussets provide long-lasting durability, even for the most frequently referenced materials. Prong-style, metal document fasteners help you ensure your file's contents remain contained. Folder Size: Letter; Total Number of Dividers: 0; Total Number of Fasteners: 2; Max Folder Expansion: 2".