Fits 17' to 32' Screens: Universally compatible with most 17' to 32' flat and curved screens weighing from 4.4 lbs to 19.8 lbs with VESA 75x75mm or 100x100mm mounting patterns Mechanical Spring Adjustment: Toolless monitor placement with perfect counterbalance presentation in all directions. Please Note: The back of the arm will extend past the edge of your desk