【Ergonomic Design】Our ergonomic office chair, the powerful waist support system is like a pair of hands, providing unlimited back support, so you can stay away from spinal pain after a long period of work and stay healthy. 【More acceptable design】Our chairs conform to most people's aesthetics, stylish design, adjustable seat height, swing function, with different color styles. 【High-end quality】We use three-stage pneumatic rod with nitrogen purity of 99.99%, inner wall thickness of 2.0mm, outer wall thickness of 1.5mm and passed SGS and BIFMA testing certification. At the same time, the chair has also passed the static pressure test of 1136 kg, which allows our office chairs to support weights of up to 150 kg. 【Ultra Comfortable Seat Cushion】We have improved the size and material of the seat cushion so that the seat cushion is 20.47 inches long and 18.9 inches wide, and has a thickness of 3.1 inches. Our seat cushion is made of all imported mesh fabric and premium PU leather, which makes it more skin-friendly and breathable, soft to the touch, lightweight and thin, high-density sponge makes the cushion more resistant and softer seat. 【Stable and durable】We use high-strength nylon feet, through SGS and BIFMA certification, the surface has an anti-oxidation protective layer, scratch-resistant, and with high-strength PU wheels, quiet and wear-resistant