The Backstage Magliner LCD HD Monitor Arm (Black) accommodates big LCD monitors and flat panel displays. You'll never twist a knob or push a lever. Simply float your plasma or LCD monitor with fingertip ease from one position to another. Tilt Head allows screen rotation from landscape to portrait mode and tilts back past 90 degrees or downward 44 degrees. Arm is easily removed from cart by loosening hand prong.