The O-Box Hanging File is a modular cabinet that hangs side by side horizontally. The O-Box Hanging file holds up to 40 letter size hanging file folders, and the 2-5/8 inch drawer is ideal for storing folders, supplies and more. Brackets allow O-Boxes to be mounted directly to uprights. O-Boxes are constructed of 5/8 inch furniture grade melamine. 24W x 16H x 14D. Please note: This item can not be shipped Priority Delivery. These orders will be shipped via Ground Delivery.