Dervish Office Chair is a contemporary chair with a comfortable upholstered seat and backrest on a height-adjustable gas piston base that swivels and tilts. The chair has a chromed steel five-star base with plastic casters. The seat has a steel structure with “S” shape springs for extra flexibility and strength. This steel frame is molded by injecting polyurethane foam. The Dervish seat is upholstered with a removable zipper-enclosed leatherette or wool fabric slip cover. Dervish Office Chair may be upholstered with a variety of other colors as a special order with a minimum quantity required. The chair is suitable for both residential and commercial use.