Made of powder-coated steel, CC11-4 Under-Desk Cable Management Tray provides solid storage room for heavy extension cables, power sockets and surge protector devices. Installation is a breeze. The metal cable tray can be easily attached to the backside of the desk with the help of open configuration. This allows tools easy access to the mounting holes. Plus, openings on both ends of the tray make it easy to route and store your cables.