Sleek and streamlined. the LX is the perfect desk accessory to add flexibility to your monitors. The tall pole accommodates monitors up to 40". Place them exactly where you want for ergonomic comfort.- 22" (55.9 cm) tall pole provides configuration flexibility. Ideal for larger displays- Add a third or fourth display using the accessory LX Arm. Extension and Collar Kit- Position monitors for maximum ergonomic comfort with unparalleled range of motion- Helps reduce eye. back and neck strain- Folding arms free up space in constrained areas- Two-piece mounting clamp has keyhole-shaped holes for quick assembly and two clamping screws for secure installation- Easily turn one or both screens from landscape mode to portrait mode—view entire pages without scrolling- Passes Ergotron’s 10.000-cycle motion test. which ensures years of trouble-free height adjustment- Constant Force™ lift-and-pivot motion technology