We have several of these excellent condition heavier duty sit/stand desks made by Watson in our warehouse. One has a taupe/grey top, and the others have white tops. These have a hideaway hand crank (pushes under the desk when not in use and slides easily out when you are ready to adjust the height). They measure 48" long by 24" deep at the smaller end, and 30" deep at the larger end. We are selling them for $209 each.