Turn any desk into an ergonomic sit-stand workstation with the Alera® AdaptivErgo Two-Tier Lifting Workstation. Designed for stability, smooth movement, and efficient use of space. Provides instant sit-stand conversion for most desks. Features a large top surface for monitors and a lower tier drawer for your keyboard & mouse. Raise and lower with ease by simply pressing the lever to engage the pneumatic mechanism. Rear-notched design accommodates most monitor arms and allows for neatly routing cables behind your display. The smart space-saving design stays within your desk space and effortlessly raises vertically within the same plane. Reinforced base for stability at any height. Will not flip or height-drop even when leaning on the workstation.