The ergonomic desk chair will become your best companion at work or in life. Still, struggling with back pain? You can choose this professionally designed office chair to upgrade your seat. This office chair can help you avoid pain caused but sitting for a long time and let you work in comfort. This office chair features an ergonomic s-shape structured backrest and adjustable support. This unique design can effectively improve back fatigue and pain. At the same time, we use a high-density foam cushion that is 2 cm ticker than the average seat, comfortable and breathable, even after sitting for a long time, you will not sweat. In addition, the adjustable armrest allows you to relax your muscles and have un at the same time. Regarding the material of the office chair, we use a safe and reliable nylon material base with PU material casters for stability. It also features 360-degree rotation and moves quietly and smoothly without damaging the floor. Do not hesitate, this office chair is definitely the best choice for you. Frame Color: Black/Silver