Ergotron LX Arm. Extension and Collar Kit

- Easily add a second. third or fourth display to your LX desk mount to hold another monitor or laptop computer- Cable management feature routes cables under the arm. out of the way- Easy to use: Simple installation and effortless operation- Patented Constant Force™ lift-and-pivot motion technology- Passes Ergotron’s 10.000-cycle motion test. which ensures years of trouble-free height adjustment