... only black, you can make it colorful. 2. thicken metal base , strong and fashion, and can be locked. 3.Every part ... metal frame with soft puHigh Density Foammetal armrestthicken metal pipeChrome Base Featureshigh back chair, with soft PU ,it made confortable ... function,can be use for rest durning the work time360 Degree Swivel RotationUpwards/Downwards, Swivel, Tilt FunctionMeets or Exceed ANSI/BIFMA ...