Drafting stool features an air grid back with built-in lumbar support, thick padded mesh seat and adjustable chrome footrest. Functions also include one-touch pneumatic seat-height adjustment. Heavy-duty nylon, five-star base has dual-wheel carpet casters. Seat size is 20″ wide x 19-3/4″ deep x 3-1/2″ high. Back size is 19-3/4″ wide x 17-3/4″ high. Drafting stool weighs 37 lb.