Global Offices to Go Multi Function Chair with Arms features: *Durable, patterned black or charcoal grey fabric upholstery *Infinite seat tilt lock with tilt tension adjustment *Back angle adjustment *Pneumatic seat height adjustment *Scuff resistant arched molded base with twin wheel carpet casters *Height adjustable armrests with pivot feature *Forward tilt control *Adjustable height lumbar adjustment Ships ready for easy assembly.