This Knoll RPM task chair has Speedway/Black upholstery and black frame. Price: $255 / (50) Available Knoll RPM Task (Speedway/Black) If you have office furniture needs, Office Furniture Center is a nationwide provider of cost-effective workstations, desks, credenzas, seating, filing, reception and conference furniture. Our entire inventory of affordable office furniture is located in Chicago; to browse our selection, please visit officefurniturecenter.com.