Innovative desktop PC monitor desk riser that mounts samsung, acer, viewsonic, LG, dell, HP, asus, AOC, emachines flat panel LCD and LED displays from 13'' to 27''. Compatible with VESA 75 and VESA 100. VESA pattern is the square bolt hole pattern behind the monitor and measures typically 3 inch by 3 inch or 4 inch by 4 inch. Dual arms are height adjustable on the vertical pole. Single arm can articulate in three different locations for best positioning of the screens. Each monitor can tilt up or down 15 degrees, swivel 360 degrees and rotate 360 degrees. Rotating the monitor holders allows landscape or portrait positioning. No need to remove the monitors to change positions. Improve the ergonomics of your office workstation by raising to monitors to an ergonomic height on your desktop, depending on your sitting position. Avoid neck, shoulder and back pain by improving your posture. Articulating arms gives you the freedom to turn the monitors to another person to share your screen. FeaturesFits 2 screensSpecificationsWeight: 13.2 lbs