Product Description: Ergonomic Mesh Desk Chair: This high back office chair's ergonomic features, including a large adjustable headrest, retractable padded armrests, a movable lumbar pillow, rocking function and 3.5-inch adjustable range of seat height, offer customized comfort for extended periods of work, study. Cushioned Seat & Mesh Back: This office chair is designed to bring the combined benefits of a foam padded seat and a mesh backrest. Extra-wide cushioned seat is elastic and not easy to deform, offering optimal support for a long period of sitting. Plus, the high backrest wrapped with breathable mesh provides you with a cooler sitting experience and full back support. Adjustable Seat Height: With the adjustment lever, the seat height can be easily shifted between 18.7 and 22.2 inches. Our computer chair also features a rocking function that allows relaxation during the break. Sturdy Construction: This computer chair is built of long-wearing polyester mesh, durable plywood frame and strong plastic base, offering you a steady sitting experience. With a 300 lb weight capacity and a large sitting area, this desk chair is suitable for most individuals. Versatility: With a sleek, see-through look and a series of customized features, this ergonomic office chair is ideal for study rooms, offices, homes, hotels and libraries.