Platform easily expands or contracts in width (23 1/4" to 30 1/2") by sliding into the desired position. For use with multiple users and work spaces (straight and corner workstation layouts). Adjusts 7 1/2" in height, +/- 15 degrees in tilt and rotates 360 degrees. Accommodates keyboard, mouse and calculator. Detachable wrist rest with micro-fibre shell.