File Cabinet Pocket is designed to work with file cabinets. Raised gusset height rides along the rails of the cabinet drawer. Resolves the problem of low gusset height on file pocket interfering with the rails when trying to remove pocket from file drawer. File Cabinet Pocket offers gussets that are extra reinforced with Tyvek strips along the top and bottom corners and the outer panels that are extra thick for added durability. 1/3-cut top tab makes it easy to identify in the file cabinet. Features 22 point back and front panels, rip-proof reinforcement with Tyvek strips along gusset corners, 9-1/2" gusset height, 3-1/2" expansion and full top tab for customizing project titles.