Alera AdaptivErgo Two-Tier Sit-Stand Lifting Workstation, 31.5" x 26.13" x 4.33" to 19.88", Black

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® 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.