This monitor arm allows amazing flexibility in screen positioning. The dual extension arm boasts a 20-inch range to bring the monitor closer or to push it out of the way to maximize working space when not in use. Mounting heads are independently adjustable with 180 degrees of both tilt and side-to-side movement. The pole features a 13" manual height adjustment with 6" vertical free float to easily change from sitting or standing viewing. Easy assembly with clamp or grommets. Mounting: Desk.