The unique Flex Design of the DS-219STA makes this the best Dual Arm Mounting Solution for existing LCD Monitors. DoubleSight's Flex Design offers the user complete flexibility when adjusting their monitors on the desktop. The DS-219STA is adjustable for Height, Tilt, Swivel and Pivot. Each Monitor adjusts independently of the other Monitor for a truly custom view. The unique 180° Arm Rotation Feature allows users to share their screen with someone sitting to their right or across the desk making this perfect for selling and training environments. It ships preassembled and is VESA compatible to guarantee compatibility with existing LCD monitors.