Hanging Box Bottom File Pockets Recycled Colored Hanging Box Bottom File Pockets with Retractable Hangers Great for catalogs and bulky files Minimum 20% post-consumer recycled material Expandable box bottom files with half-closed sides to hold contents securely. Constructed of red wallet stock, with tearproof colored Tyvek reinforced gussets. Color matched hangers slide and retract for carrying ease. Letter size. 4" Expansion Red