Task chair offers maximum comfort, support and functionality and minimizes the impact on your bottom line. The high-quality materials and customizable controls make it a smart solution for any application. Distinctive, ergonomic design reflects advanced comfort research. T-shaped back reduces pressure points while it supports the upper body. Light-scale visual effect fits well in the shrinking workplace. Bold styling and durable construction combine to deliver great value. Polyester fabric is abrasion-resistant for durability. Functions include 360-degree swivel and pneumatic seat-height adjustment from 16-1/2" to 21". Seat measures 19" wide x 18" deep. Back size is 18-3/4" wide x 17-1/2" high. Weight capacity is 250 lb. Five-star plastic base is equipped with dual-wheeled carpet casters for easy mobility. Arms are sold separately and adjust in width and height to maximize comfort.