Ergonomic Mesh Office Chair with Lumbar Support and Rocking Function-Black

-Ergonomic backrest and rocking function relieve back pain and promote good posture -Control lever and tension control (tight and loose) for easy adjustment -Y-shaped lumbar support and human bionic design promote comfort -The headrest can be adjusted up and down and rotated for cozy neck support -Adjustable armrests with rotation adjustment and front and back adjustment -Flip up the armrests to enjoy more freedom and convenience -4" seat height adjustment meets different using needs -4" resilient thickened cushion for enhanced comfort -Breathable mesh is designed to keep your back sweat-free -High-density sponge provides more coziness for your workday -The gas lift with SGS certification and stable 5-claw base for great support -360° swivel seat and mute universal wheels for maximum flexibility -Selected executive chair for home and office ● Ergonomic Design and Rocking Function: The ergonomic office chair features an S-curve backrest designed according to the curve of the human spin