Fellowes Office Suites Adjustable Keyboard Tray features a single knob to adjust tray height and tilt up to +0°/-10°. Swivels left or right and swings back underneath work surface for storage. Sliding arm lets you pull keyboard closer. Mouse tray can be mounted on left- or right-hand side. Constructed of solid 2 mm thick steel for lasting performance. Memory foam wrist rests. For use in the office, home office, or wherever you would like to place your keyboard in an ergonomic position.