Ergotron � LX Monitor Arm, Extension, and Collar Kit � Add-on for LX Tall Pole Monitor Arms � White

"Compatible with LX Tall Poles: Upgrade your LX Desk Arm, Tall Pole (45-537-216) to a dual monitor setup or expand your LX Dual Stacking Arm, Tall Pole (45-509-216) to hold three or four displays; additional monitors may reduce maximum weight capacity"

"Easy installation: Includes LX arm, extension, pole collar, cap and attachment hardware; attaches anywhere to the pole of the LX desk mount base to hold additional monitors"

"Boosts productivity: Create a flexible yet stable two, three or four-monitor workstation to dramatically increase workflow efficiency; ideal solution for gaming, call centers, industrial spaces or finance where screen space is essential"

"Neat workspace: Lift your monitor off the desktop, freeing up vital space on the worksurface; cable management routes cables under the arm, out of the way; combine with Notebook Tray (50-193-200) to support a laptop or convertible notebook"

"Professional-grade quality: Extensive testing guarantees your displays stay stable and secure; backed with a 10-year warranty and expert tech support, Ergotron�s products are built to last"