Smead expanding file pockets are extra durable, even when fully packed. Our tear resistant rollover reinforced sides make them virtually tear proof. These expanding file organizers have pocket sides that are reinforced with tear resistant material to last longer and hold more. Smead expanding file pockets feature double-thick, manila-lined fronts and backs for extra strength. SFI Certified Fiber Sourcing. Letter-size, 8 1/2" x 11", file pockets with 5 1/4" expansion make it easy to store your documents. Redrope pockets come in a box of 50 file pockets. Contains Recycled Content - See Specs for Details