Upholstered in soft and durable Black Fabric Built in lumbar support to maintain proper sitting posture Heavy duty nylon base with durable multi-surface dual wheel casters Black superior PolyPropylene(PP) armrest for arm positioning Convenient pneumatic seat height adjustment Tilt Tension Function enables to control the smoothness of the backrest Tilt/Recline Excellent for office, work station and cubical area 360 degree swivel wheel and chair can run smoothly on floor Comfortable, Attractive, Supportive