This high back office chair provides ultimate lumbar support. The Unico has firm 100% Polyurethane cushion rolls for the back and a plush seat. The frame is comprised of a steel tube and the arms are height adjustable. The tilt mechanism is locking and height adjustable.Product Materials: Steel, 100% Polypropylene, Foam, 100% PolyurethaneProduct Finish: Powder CoatedCapacity: Supports up to 280 lbsCommercial Material: MetalCare Information: Warm water and mild soap with soft towelProduct Stackable: Not StackableProduct Assembly: Adult Assembly Required, Tools ProvidedSeat Includes: Includes floor protectors to prevent floor surfaces from scratchingSeat Dimensions: 20" SW x 15.9" SD x 21" SHProduct 1 Dimensions: 25" W x 23.5" D x 46" HSeat Height: 18.5 - 21Arm Height: 26 - 28.5Weight (LBS): 39.6