Thick padded seat and back with built-in lumbar support. Waterfall seat reduces stress to legs. Adjustable back depth. Pneumatic seat height adjustment. 5 star nylon base allows smooth movement and stability. Hooded double wheel casters. Comes in durable easy to clean microfiber. Available in 4 fabric colors. With adjustable arms.Features : Thick padded seat and back with built-in lumbar support; Seat Size: 17.5"" W x 16.5"" D; Waterfall seat reduces stress to legs; WT. Capacity: 250 lbs.; Adjustable back depth; Pneumatic seat height adjustment; 5 star nylon base allows smooth movement and stability; Hooded double wheel casters; Comes in durable easy to clean microfiber; Available in 4 fabric colors; With adjustable arms. Specifications : Seat Height : 18.5""-23.5"" H; Arm Height : 24""-32"".