The Flat Panel Desk Mount Monitor Arm allows to place your "VESA compliant" or "zero footprint" flat panel monitor anywhere on desk for space-saving, comfortable viewing. The arm extends 9" in any direction, rotates at the base 360 degrees, tilts up to 90 degrees in all directions, and allows rotation of monitor from landscape to portrait. Three height levels provide best fit your needs. The arm fits desks 1" - 4" thick and holds up to 20bs.