Simply tilt keyboard tray forward, raise or lower for desired height and release to lock in place. Use lever to tilt tray within a 30 degree range and rotate keyboard or mouse tray to preferred work position. The durable wood fiber construction provides lasting performance and curved ergonomic shape fits the natural contours of the body. Includes soothing gel wrist rests for both keyboard and mouse trays. Mouse tray mounts to either right or left side of keyboard tray and can slide under keyboard tray.