Corner desk riser optimizes the space on a corner desk or cubicle. It rises up to 18" and lowers down to 5" to optimize the ergonomic work position for people of all heights. Extra-wide, 45.5" top can hold up to three monitors, a laptop and more. Straight up and down motion minimizes required depth (23"). Ergonomic keyboard tray (40" wide x 13" deep) maintains 4.5" spacing between keyboard tray and desktop, which helps keep arms and wrists in an ergonomic position to prevent neck and back strain while sitting or standing. Tray attaches in seconds, and you're ready to go. Gas shocks hold up to 40 lb. Grommet hole allows you to route cables or add an optional monitor mount.