The TygerClaw Sit-Stand Desk Converter allows the user to turn any fixed-height desk into an active workspace. Easily operated with a single handle, it provides unhindered 110-505mm (4.3"-19.9") up-and-down adjustments on the advanced gas spring mechanism. The converter also proposes a perfect solution for daily work. The 950X400mm (37.4"X15.7") upper desktop has plenty of room to work and the convenient lower keyboard tray offers enough area for a keyboard and mouse.