Provides optimum support for the widest possible range of users and body types. Back height adjusts to allow user to correctly position lumbar support. Waterfall seat edge reduces pressure at the back of knees for improved circulation. Spring-balanced arms with comfortable urethane armcaps. Levers feature easy to understand symbols as well as Braille for the visually impaired. Recommended Applications: Executive & Management; General Office & Task; Seat/Back Color: Onyx.