These lifting workstations turn any desk into an ergonomic sit-stand station. Raise and lower with ease within a 19.69" range. 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.