The Rocelco ADR (Adjustable Desk Riser) sits on your desk, and holds a monitor, keyboard & laptop,. You can raise or lower it in seconds, allowing you to work sitting or standing for better health. "Sitting is the new smoking". Employees who use a sit to stand desk are more productive, focused and less stressed. According to Smithsonian Magazine, there are 5 key benefits to standing at work for part of your day: - reduced risk of obesity. - reduced risk of type 2 diabetes and other metabolic problems. - reduced risk of cardiovascular disease. - lower long-term mortality risk. The Rocelco ADR sits on top of your existing desk. It provides an adjustable height 32" x 20.5" desk that easily holds 2 monitors and a laptop. Gas springs hold up to 50 lbs. 5 adjustable heights from 6.5" to 16.3" provide the proper height and working angle for sitting or standing. Keyboard tray is 24" wide x 11.5" deep, large enough to hold a keyboard or a laptop and retractable to offer the ergonomically correct position whether sitting or standing. The Rocelco ADR weighs 26.7 lbs. with shipping weight 34.1 lbs.