This Knoll Life task chair has a Blackout (BSF17) mesh seat back, Blackout knit seat and a black frame. Also features chrome adjustable height arms with black armpads. Full ergonomics. Price: $355 / (27) Available Knoll Life Task (Blackout) 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.