The Balt Ergo Sit/Stand Table Top Workstation (Teak/Silver) is a total ergonomic unit. 41w x 29d work surface adjusts pneumatically from 29" to 39" at the touch of a finger for sitting or standing. Top printer shelf 25-1/2w x 11-3/4d, bottom CPU shelf 10w x 19-3/4d. 20w x 11d keyboard shelf tilts from +22.5deg./-15deg. and can be raises 1" above or 4" below the work surface. Independent, articulating mouse platform for right- or left-handed use. Teak finish laminate tops with silver steel base.