The unique Flex Design of the DS-219STB is the perfect best Dual Arm Mounting Solution for your desk top, especially where space is limited. DoubleSight Flex Design offers the user complete flexibility when adjusting their monitors on the desktop. Each Monitor adjusts independently of the other Monitor for Tilt, Swivel and Pivot for a truly custom view. In addition to adjusting the Height, users can also move monitors forward or backward on the stand for a better ergonomic fit. DoubleSight Flex Stands ship preassembled and feature VESA mounting brackets to guarantee compatibility with LCD monitors. The Dual and Triple Models are easily expanded as your viewing needs change. Utilize our Tier Extensions to add a second or third row of monitors to your existing stand.