UPGRADED ORGANIZER BOX - This file storage organizer is made of sturdy board instead of cardboard. Solid boards provide strength and durability for each box. PLUS, extra bottom board keeps the box more stable^ HANGING FILE BOX - The storage organizer fit both letter and legal size files. We add sliding bars which match the hanging file box, and the bars are perfect for files that you need to assist in easy sliding back and forth^ ATTRACTIVE POINT IN DESIGN - Our file box is designed with label holders on sides, so you can see them regardless of which way you position the boxes. Moreover, it can be easily folded flat and put away when not in use to save space^ SIZE -Interior dimensions: 15x12x10.75 Inch And its storage capacity is 1 cubic feet, suitable for normal cube shelves or closet shelves^ STACKABLE FILE BOX - The file box helps to sort letters or files/paperwork orderly, is easy to put in a closet to avoid any clutter. And it'a also protable for being easily moved from place to place in travel or at work