Jeffcoco Furniture Black Mesh Multi-Functional Swivel Office Chair with Lumbar Support, Adjustable Height, 360-Degree Rotation, Ergonomic Design, and Rolling Wheels for Home, Office, or Gaming

【Features】ergonomic chair with adjustable curved headrest can make neck tilt easily and comfortably, adjustable lumbar support bracket for free adjustment of height depth, 3D adjustable armrest for different office applications, 90°-126° arbitrary backrest adjustment for multiple work positions, any switch 3.15 in lift, 360 ° Freedom to rotate freely 3D handrail.