Pendaflex SureHook Reinforced Hanging Box File, 3", Letter, Blue, 1/5 Cut, 25/BX (59203) Closed sides expand 3" to hold up to 600 sheets Super-strong SureHook rods with built-in tension springs keep hanging folders gliding on the rails Poly-reinforced top edge and bottom fold provide added durability Includes printable label sheet and 25 clear 1/5-cut tabs Box of 25 letter-sized blue folders for general or color-coded filing Features Surehook technology with longer plastic hooks and built-in tension springs so that folders stay on track, slide easily and don't buckle Perfect for organizing thick reports and bulky projects Closed, tear-resistant sides prevent items from slipping out Poly-laminate reinforced at top of folder for added durability Full Lifetime Guarantee