Designed to stand up to frequent handling. Reinforced tab and folder top provide extra durability and strength. 11 pt. Kraft stock offers extra resistance to smudging and moisture. Undercut front to increase indexing area. Scored for 3/4" expansion. Resists moisture. Acid-free. File Folder Size Type: Letter; File Folder Color: Kraft; Color Family: Brown; File Folder Material: 11-pt Kraft.