Ergotron LX Dual Side-by-Side Arm - Mounting kit (desk clamp mount, grommet mount, 2 articulating arms, 2 extension brackets) for LCD display - screen size: up to 27" - desktop stand | Stone Group
Additional monitor arm for LX mount, Ergotron 98-130-224, black
Ergotron LX Monitor Arm | Monitor Arms
Ergotron HX Desk Monitor Arm - Posture People
Ergotron LX Extension and Collar Kit - Mounting component (articulating arm, installation hardware, cap cover, pole collar) for Monitor - white with grey accents - screen size: up to 40" - pole