Corner desk riser optimizes the space on a corner desk or cubicle. It rises up to 18" & 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 & more. Straight up & down motion minimizes required depth (23"). Ergonomic keyboard tray (40" wide x 13" deep) maintains 4.5" spacing between keyboard tray & desktop, which helps keep arms & wrists in an ergonomic position to prevent neck & back strain while sitting or standing. Tray attaches in seconds, & 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.