Onyx Hanging Organizer, Solid Top Horizontal, 4 Compartments, Steel Mesh, 12.33 x 12 x 10, Black Steel mesh design and attach directly under a work surface. Organizers are able to move with the user. Durable, black powder-coat finish. Solid top storage hangs flush with desktop. Mountable storage includes mounting hardware and puts all desk organization completely under the desk.