Relieve the stress on back and spine caused by sitting for long periods of time. Features a much more comfortable and ergonomic design than most stools a high-density molded seat that has PU vinyl upholstery with plenty of cushioning. Features maintenance-free multi-directional casters that won't clamp hair. One-touch lever for the gas-lift mechanism adjusts the height from 21.25" to 24.5" while a five-legged base turns 360 degrees and rolls smoothly. Helps reduce fatigue and provides a comfortable seat when working. Supports up to 220lbs.