The Luxor Pneumatic Standing Desk Converter transforms your work area into a standing desk, delivering height adjustments from 2.75-15.75". This adjustable desk comes preassembled and can be placed on any flat surface without the need for tools or complicated installation. For easy and smooth height adjustments, a pneumatic air cylinder and spring-loaded bumper technology allow you to slowly raise and lower the shelf. The black shelf offers a 22.3 x 31.5" surface area and supports up to 20 lb of equipment, including two displays, a keyboard, and a mouse. The shelf has chamfered edges to offer comfort for your wrists and forearms. The shelf features a textured surface to help keep your computer and other workstation equipment in place.