DoubleSight's unique Flex Stand design allows for easy expansion as your needs change. This Dual Model is easily expanded with the addition our Tier Extensions to add a second or third row of monitors to your existing stand. In addition to 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 DS-22T can be used in conjunction with the DS-23T to create Multiple Monitor Stands from 4 to 9 Monitor Mounts on a single base.