This is the office chair with flat, elastic bands that conform to every curve of your back, legs, and gluteus maximus, ensuring support and relieving pressure that can result from strenuous sitting positions. Unlike mesh, foam, or leather chairs that sag when pressure is applied and "settle" over time, resulting in uncomfortable pressure points and insufficient support, this chair has independently suspended elastic bands that flex without compromising each other, providing support where it is needed as you adjust your sitting position, and return to their original position when not in use. The chair back has an infinite locking mechanism that allows complete control over the lumbar tilt, ensuring optimal back support whether you are sitting upright or reclined. A rocking mechanism allows free movement and a tension lever adjusts rocking resistance, the arms swivel, move horizontally and vertically, and adjust forward and backward, while the fixed headrest prevents neck strain and encourages proper posture and spinal alignment. The stainless steel frame has powder-coated finish and is durable yet lightweight, the elastic bands have a polyester threading that won't pinch or leave marks on skin or clothing and the casters allow ease of movement. Supports up to 350 lbs. 30" H x 20" D x 26 2/3" W. (36 lbs.)