The two drawers can be locked with the included key, keeping your important documents safe from prying hands. Perforated Panel Sides. Not only does it prevent items in the open compartment from falling off, but it also adds an industrial touch to this filing cabinet. Fifth Wheel Under the Drawer. A clever extra wheel under the drawer handles the weight when the drawer is open and keeps the filing cabinet from tipping over. For a Tidy Office: Papers in the open compartment, pens in the top drawer, and A4 or letter-size hanging file folders in the bottom drawer keep your office supplies in this office filing cabinet. How about displaying some decorations on top!