Keep your bulkiest reports contained with Pendaflex SureHook Reinforced Hanging Box Files. Tall, tear-resistant sides keep papers upright and in place. Pressboard inserts expand folders 2" to hold up to 400 sheets. Super-strong rods with longer hooks and tension springs resist buckling so heavy files glide smoothly on the rails. Letter size, blue. 1/5 Cut with 20 clear tabs included. 25 Per box.