You can really feel the quality of this item it has dual-monitor arms with two USB ports to bring flat screen monitors to eye level and off your desk. It displays and moves each screen independently with a single mount. Easily tilt each monitor up and down or swivel it to position them wherever you desire. Monitor tilt ranges from 15 degrees to negative 85 degrees. Height adjusts from 12-4/5" to 17-1/5" tall. Two USB ports provide a convenient way to stay connected to your data. Enclosed cable management presents a clean appearance. Install to almost any desk or table with it's large desktop mounting bracket. Arm is made of high-quality aluminum alloy. Its maximum extension is 21". VESA compatibility is 75mm and 100mm. Just compare the weight this is a heavy great quality item !