Pendaflex Smart Shield&nbsp;Reinforced File Jackets, Letter Size, Manila, 1 Inch Expansion (24910AM) Reinforced file jacket is made with a material that inhibits the growth of mold and mildew to protect the product Enclosed sides secure papers and smaller items Reinforced top tab extends 1/2 Inch for easy labeling Durable 11 pt. manila; Sides expand 1 Inch to hold 250 sheets; Letter Size; Box of 50 Paper made from 10% recycled fiber, with 10% post-consumer fiber