Upright Cardboard Drawing Storage Bins - Compact yet durable, files are constructed of corrugated fiberboard (CARDBOARD) and reinforced by plastic molding for extra-long durability. Includes slotted hand hole and four non-slip rubber feet. Finished in a subtle walnut woodgrain. Base is 15" wide x 12" deep, height is 12" in front and 22" in back. Shipped flat but easily sets up in minutes. 12 slots (3 7/8" x 3 5/8")