Dual-monitor platforms are independently adjustable for optimum flexibility in configuring your desktop and platforms can be positioned together as a shelf. Design supports proper ergonomics for viewing screens. Easily adjust laptop height to match monitor height with a 2-3/10" range from 6-1/10" to 8-2/5". The 12-3/4" x 12-3/4" platforms also include an integrated phone/tablet holder. Made from powder-coated welded steel, this ergonomic stand provides a sturdy shelf for your laptop, monitor and/or printer. Perforated hole pattern in the steel provides passive airflow to keep your electronics cool. The space beneath the platforms provides a place for your keyboard or other office supplies and electronics so you can keep them out of the way when not in use. Six nonslip foam rubber pads protect desk surface. Each platform holds up to 20 lb.