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 & Collar Kit Position monitors for maximum ergonomic comfort with unparalleled range of motion Helps reduce eye, back & neck strain Folding arms free up space in constrained areas Two-piece mounting clamp has keyhole-shaped holes for quick assembly & 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 Patented Constant Force™ lift-&-pivot motion technology