OT1711 Features: * Contour self-skinned urethane seat and back * Built-in lumbar support * Pneumatic seat height adjustment * Back height adjustment * Seat depth adjustment * Black self-skinned urethane * Heavy duty nylon base with dual wheel casters * Multi task control * One lever for seat and back angle adjustment * Seat travel: 7.5"" Dimensions: * Seat height: 16"" - 21"" H * Back dimensions: 17"" W * Seat dimensions: 18.5"" W x 18"" D x 1.5"" T * Back dimensions: 17"" W x 13.25"" H x 1"" T * Overall dimensions: 41.75"" H x 18.5"" W x 22.5"" D