WE USE THESE IN OUR OFFICE FOR THE PATIENT'S CHARTS AND TO HOLD FEE TICKETS. WE ALSO ATTACH ANOTHER SET OF PRONGS TO THE LEFT SIDE TO STORE EVEN MORE. THESE FOLDERS ARE GREAT. WE HAVE A LOT OF PATIENTS SO WE HAVE TO MOVE THE FOLDERS AROUND TO MAKE ROOM, PUT IN STORAGE OR JUST TO CHECK SOMETHING IN THEM. THEY LOOK GREAT ON THE SHELVES AND KEEP VERY IMPORTANT INFORMATION NEATLY STORED. YOU WILL LOVE THIS PRODUCT.