These lifting workstations turn any desk into an ergonomic sit-stand station.Raise and lower with ease.Two-tiered worksurface and keyboard/mouse platform for better ergonomics.Platform's rear-notched design accommodates most monitor arms. Neatly route cables behind display.Designed specifically for use with the Alera AdaptivErgo Monitor Arms.Smart space-saving design stays within your desk space and raises vertically within the same plane; no having to step back and out when in the raised position.Reinforced base for stability at any height; will not flip or height-drop even when leaning on the workstation.Non-skid silicone pads protect your work surface from scuffs and scratches.High-quality top surface is water- and dent-resistant.Ready out of the box so no installation required.