These lifting workstations turn any desk into an ergonomic sit-stand station. Raise & lower with ease. Two-tiered worksurface & 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 Monitor Arms. Smart space-saving design stays within your desk space & raises vertically within the same plane. No having to step back & 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. Series Name: Alera AdaptivErgo; Worksurface / Base Color: Black; Color Family: Black; Worksurface Shape: Rectangular.