Space-saving wall file pockets pack a lot organization into a compact space. The pocket storage attaches directly to walls or solid doors with the hardware provided. Customize the amount of storage you need with flexible add-on system to suit your business needs. Deep pocket holds multiple files or papers without damaging. Files can be accessed and returned quickly. Made of durable black plastic. Three-Pocket Set—Expand with Add-On Pockets (sold separately). Hanging File Systems Type: Hanging Expandable Multiple Pockets; For File Size: Letter; Overall Height: 14.5"; Width: 13".