Heavy-duty 25 pt. pressboard folder features a 2" expandable Tyvekå¨ reinforced tape gusset for added durability. 1" capacity metal prong fasteners on the inside of front and back covers. 1" prong fastener on both sides of each 17 pt. Kraft divider. Pressboard is made of 30% post-consumer waste and 30% other recycled fiber and divider is made of 15% post-consumer content. Letter size comes 10 folders per box with 10 boxes per carton. Legal size comes 10 folders per package with 5 packages per carton.