FSA1 features a counterbalancing arm that adjusts to the weight of the monitor, from light (7 pounds) to heavy (up to 22 pounds) monitors and holds firmly in place at your desired setting. The arm offers vertical adjustment for optimal height setting and 14" of horizontal adjustment for lateral movement. The screen can tilt up or down 20 degrees, and the screen is able to rotate 360 degrees. Fully extended, the monitor can project out to a maximum of 22" from the mounting post. The arm includes a wire manager to help channel and conceal the wiring. Arms attach to plates on the back of most flat screen monitors, which must have the VESA 75 mm or 100 mm mounting pattern. Installing is easy; just drill a single 15/32" (12mm) hole in the desk or work surface and fasten from underneath.