Unlike Standard Project Folders, the File Jackets are sealed on three sides, providing more protection & room, if needed. These acid-free polypropylene 8 1/2" x 11" files feature a 1-inch gusset, allowing the file jacket to expand. Designer V-cut front provides easy access to documents. Full-length tab & lined front panel feature write-on technology that allows you to identify & organize folder contents. Works with pencil, ball point pen or permanent marker. Number of Sections: 1; Tab Cut: Straight; Size: Letter; Punched / Unpunched: Unpunched.