Durable, convenient hanging pockets feature built-in heavy-duty reinforced tabs permanently attached to the pocket. No assembly required. Easy to label by writing directly on the tab or by applying self-adhesive labels. Full height side gussets keep contents from falling out. Expands to manage large projects. 11 pt. stock is glued around rods on both sides for added strength. Hanging File Folder Type: Expanding; Size: Letter; Expansion: 3 1/2"; Material(s): 11 Pt. Stock.