Description 3 dimensional adjustability for optimum viewing comfort Helps reduce neck strain and shoulder tension Fully articulating arm tilts up or down /- 37 degrees with 360 degree rotation capability Height adjusts 3 1/2 inches to 16 1/2 inches from center of mounting plate Easily mounts to desktops 1″-3″ thick or through grommet holes Prevents neck strain by elevating monitors to a comfortable viewing height with 3 dimensional adjustment for optimal viewing. Keeps monitors off crowded desktops, increasing work area. Easily mounts to desktops 1″ – 3″ thick or through grommet holes.