Unique file pocket design has a raised gusset height so that the gussets ride along the file cabinet rails. This eliminates tearing and damage caused by removing file pockets with low gussets. 9 1/2" high gussets are reinforced with rip-proof TyvekÔŅĹ strips along the top and bottom corners. Extra-thick, 22 pt. outer panels for added durability. Full tabs. Expandable File Folder Type: File Cabinet Pocket; Size: Letter; Width: N/A; Height: N/A.