Task stool with footring is ideal for standing-height workstations and tables. Two layers of foam cushioning provide plush comfort and reduce pressure points. Waterfall seat edge promotes better leg circulation. Large-scale seat and back accommodate a wider variety of users. Seat and back are upholstered in high-quality HON fabrics. Center-tilt mechanism rotates the seat from a point at the center to comfortably recline. Tilt tension controls the rate and ease of recline. Other functions include pneumatic seat-height adjustment from 24-1/2" to 33-1/2" and 360-degree swivel. Mobility is easy with the 50mm nylon casters (hard) on the five-star base. Chair does not include arms, but an adjustable-height arm kit with two black arms is sold separately. Seat measures 19" wide x 17-1/2" deep. Back size is 19" wide x 22" high.