SP RICHARDS LLR99552 Lorell Electric Sit-To-Stand Desk Riser, 17-2/10inH x 31-1/2inW x 24-3/8inD, Black

Add this versatile riser to your desk space to create an ergonomic sit-stand solution. The Electric Desk Riser adjusts up and down with the push of a button to help you set it to your preferences. Designed to attach to your existing fixed-height desk to turn it into a sit-stand option. Offers 12in of height range so you can find the proper position. Anti-collision function will stop the up/down motion if the desk riser meets objects like a coffee cup or bottles. The top surface is 31 1/2W x 24 2/5inD for ample working space. USB interface helps you keep devices powered throughout the day. Weight capacity tested to support up to 33 lb. Save time - no assembly required. Full depth with keyboard tray is 32-7/8inD. Tested to meet ANSI/BIFMA Performance Standards - Manufacturer testing has been conducted on this product to meet specific performance requirements and safety standards set forth by the American National Standards Institute (ANSI) and the Business and Institutional Furniture Manufacturers.