Use this riser with one monitor arm to turn any desk into a sit-to-stand workstation in minutes, without modifying the base or frame. This directional, desktop sit-to-stand device is easily clamped onto any existing worksurface with a depth of 20" to 30". Raise it whenever you desire a standing-height workstation. This design puts you in more control over both your environment and your posture. Two-tiered platform is quickly elevated by a gas-assist lever-operated mechanism, which makes raising or lowering the laptop or monitor easier. Riser includes a large primary worksurface, a monitor arm for a single monitor and a smaller platform for keyboard and mouse. Beveled edges create a sleek look and add comfort when typing. Seamless black worksurface looks good with any type or color of desk. Overall weight capacity is 25 lb.