Durable, 100 percent Pressboard folder features prong fasteners inside both covers and on both sides of dividers. Metal fasteners are 2-3/4" center to center, positioned on the short end of the folder. 25 point, blue Pressboard covers have 2/5-cut index tabs in right-of-center position. Center dividers are made of 20 point Pressboard. Hanger rods fold down for convenient transporting. 2" expansion gusset is made of long-lasting, reinforced tape. Classification folder is acid-free.Durable, 100 percent Pressboard folder features prong fasteners inside both covers and on both sides of dividers. Metal fasteners are 2-3/4" center to center, positioned on the short end of the folder. 25 point, blue Pressboard covers have 2/5-cut index tabs in right-of-center position. Center dividers are made of 20 point Pressboard. Hanger rods fold down for convenient transporting. 2" expansion gusset is made of long-lasting, reinforced tape. Classification folder is acid-free.