Material: PU Mechanism: Locking-tilt Mechanism Colour: Black Gas lift: 80mm Class2 Gas Lift Style: Executive Chair, Lift Chair, Swivel Chair Base: 320mm Chrome Base Armrest: Chrome armrest Product Size: 51*58*100-108CM Package: 1PC/CTN Packing Size: 70*20.5*47CM Quantity Of Loading: 1010PCS / 40 HQ