Sit-to-stand computer workstation with a desktop base lets you enjoy the healthful benefits & productivity of standing while you work. Pneumatic height-adjustment lets you quickly switch from a seated to standing position. Large platform accommodates monitors up to 25 lb. Versatile design can be used with a single-monitor or dual-monitor mount (sold separately). Workstation is designed for desks without the ability to mount the Kantek desk-mounted system to the rear of the desk.