File pockets won't rip out even when pulled from the shelf by the gusset Gusset is fully lined with tear-resistant Tyvek(R). It also has special rollover reinforcement at the top and extends into the front and back panels twice as far as standard file pockets. Super heavyweight, front and back panels provide rigid support. Panels also have a hidden reinforcement strip at the point of greatest stress. Extra wide design accommodates standard-size top tab file folders to create a complete client file. File pockets have end tabs and are made of Redrope stock. Greener choice - contains a minimum of 30% postconsumer recycled content. SFI Fiber-Sourcing Certified. Smead File Folders part of a large selection of office supplies. Smead(R) TUFF(R) Pocket File Pocket, 7in. Expansion, 9 1/2in. Made by Smead.