A quality fabric upholstered high back office chair with a black nylon base. Offering all-day comfort with a high back and PCB mechanism, providing flexibility and functionality. Deep cushioned seat and back upholstered in a tough wearing fabric. Permanent contact back (PCB) ensures user comfort for up to 8 hours. Backrest angle can be fixed or set to free float with the user. With a class 4 gas lift and soft edge castors. Available in black, grey and blue fabric.The seat height ranges from 475mm to 610mm giving a wide range of seating positions depending on your desk height.MechanismA 2 lever mechanism controls the seat height and back angle which can be locked in any position. The back height is also adjustable.