Gakko Spider is a unique office chair with a comfortable upholstered seat and backrest on a steel spider base with plastic glide tipped into each foot. 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 Gakko seat is upholstered with a removable zipper-enclosed leather, PPM, leatherette, or wool fabric slip cover. This contemporary chair is suitable for both residential and commercial use.