Set the perfect height when sitting or standing. Pneumatic control lift-assist height-adjustable table base. No electricity needed. Durable base recommended for up to 85-lb. lift capacity including weight of worksurface. Movement within a 13 range from 26 1/4 to 39 5/8 . Accommodates most common worksurfaces ranging from 59 to 72 width; and 24 to 30 depth. Strong black powder coated steel frame with cross bars provides stability and prevents racking. Adjustable leveling glides to compensate for uneven floors. Base Color: Gray; Overall Width: 59.06 ; Overall Depth: 28.35 ; Height Minimum: 26.18 .