Elevates flat panel monitors to comfortable viewing height to prevent neck strain. Includes five 1 height adjustments. Supports 21 monitor screens up to 20 lbs. Tilts up or down +/- 45 - pivots left to right 180 - and allows 360 screen rotation. Clamps to surfaces up to 2 1/2 thick (2 desk overhang required) or mounts in grommet hole. Includes cord management system.