Use this riser 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 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. This riser is designed to hold one laptop or monitor on its original stand. Overall weight capacity is 29 lb.