Smead Hanging Pocket with Full-Height Gusset, 3-1/2" Expansion, Letter Size, Assorted Colors, 4 per Pack (64291) Ideal for storing large amounts of paperwork. Full-height side gussets keep pocket from catching on drawer rails Protects and secures documents Pockets slotted front and back inside panels to accept tabs (not included) Expands 3-1/2" to hold up to 400 sheets Contains 10% recycled content, 10% post-consumer material Ideal for storing large amounts of paperwork. Full-height side gussets keep pocket from catching on drawer rails. Protects documents on all sides and keeps them from falling out. Great for frequently used files.