Write-On Poly File Jackets, Straight Tab, Letter Size, Assorted Colors, 25/box Write-on expanding file folders help you divide, organize and color code projects. Designer V-cut front provides easy access to documents. Full-length tab and lined front panel feature write-on technology. Use write-on feature to identify and organize folder contents. Sealed on three sides with 1" expansion. Acid-free poly jackets are made for 8 1/2" x 11" document storage.