The Kolors III collection by Presidential seating feature a thick padded seat and back with built-in lumbar support. Waterfall seat reduces stress to your legs. Back depth is adjustable. Available in four fabric colors. Pneumatic seat height adjustment. Seat Size: 17.5" W x 16.5" D. Seat Height: 18.5-23.5". Overall Size: 17.5" W x 25" D x 35"-40" H. Not for commercial use.