Pendaflex 13-Pocket File, 4" Expansion, 13 Sections, Hook/Loop Closure, 1/12-Cut Tabs, Letter Size, Black - Locate, organize and protect documents with this simple and durable expanding file. Constructed of textured polypropylene—20 times stronger than paper based material. 12 built-in tab dividers with A-Z and blank inserts add many organizational options. Two interior window pockets with contents card make it easy to identify file contents. Full-length label on spine. Fast and convenient hook & loop closure.