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 by sitting for a long time and let you work in comfort. This office chair features an ergonomic s-shaped structured backrest and adjustable butterfly support. This unique design can effectively improve back fatigue and pain. At the same time, we use a high-density foam cushion that is 5 cm thicker than the average seat, comfortable, and breathable; even after sitting for a long time, you will not sweat. In addition, the adjustable armrests allow you to relax your muscles and have fun 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 a 360-degree rotation and moves quietly and smoothly without damaging the floor. Do not hesitate; this office chair is the best choice for you.