Experience unmatched comfort and flexibility with the Costway Black N Type Lumbar Support Ergonomic Office Chair. Offering a customizable height range of 46 to 50 inch and a 360° rotating wide seat, this chair allows for easy access and seamless interaction within your office environment. Its ergonomic design features a 2-level reclined backrest, adjustable headrest, and armrests, ensuring that your work-to-relax transition is as smooth as possible. The adaptive lumbar support system moves with you, providing targeted support to reduce sedentary discomfort. Crafted from breathable mesh and high-density sponge, it combines durability with comfort, while the sturdy base and smooth-rolling PU wheels ensure stability and mobility. The chair features a sturdy gas rod, a 5-claw base, and can support up to 355 lbs, ensuring stability. The seat height is adjustable from 46 to 50 inches. The backrest can be reclined to 107° or 133°. The headrest is adjustable by 3.5 inches, and the armrests have a 9-level adjustment.