INSPIRED STORAGE. Ideal for use with sit-stand workstations and standing desks, the Onyx Mounted Under-Desk Storage Unit hangs below your desktop to help keep essential items within easy reach and reduce work surface clutter. QUALITY BUILD. With a lightweight but sturdy steel wire and mesh construction and scratch-resistant black powder coat finish, the Onyx Mounted Under-Desk Storage Unit offers long-lasting durability in a variety of active office environments. ORGANIZATION DONE RIGHT. Put sticky notes and paper clip boxes in the removable, tray-style drawer and add larger items like notebooks, folders, documents or your mobile device to the lower box shelf “ pens and pencils get an easy-access tray in front. INSTALLATION. Onyx Hanging Storage Unit attaches to the underside of your desk using the four included screws - you'll need to drill a.5"-deep pilot hole into the desktop for each one. Minimum Desktop Thickness:.75". Drill and 5 64" drill bit required. DIMENSIONS. Overall: 10.25"W x 12.375"D x 7.25"H.