Kool Task Chair with polypropylene backs and seats adds flair and comfort to any space. Ergonomic, perforated back offers an attractive design that enhances circulation and airflow. Radius conforms to your back for maximum comfort. The 12-gauge frame with 16-gauge, tubed steel provides a secure, supportive base for enhanced longevity. Chair swivels 360 degrees. Pneumatic gas lift raises or lowers chair for optimal height options. Five-star base includes hooded, dual-wheel casters for easy mobility.