【Ergonomic Backrest】 the overall design of this office chair is ergonomic, the backrest and lumbar support fit the natural curve of your lower back, let your body and mesh chair perfectly fit, and take the spinal pain away from your body. It provides comfortable support, which helps you maintain a relaxed posture during long hours of work. 【Free Adjustment Multi-Function】The height of the swivel computer chair can be adjusted according to demand. Also, you can tilt backward to relax, switch your sitting posture, and adjust the tilting angle by twisting the tension column under the chair seat,the 90 -120-degree rocking design meets your different sitting positions. It also features 360-degree rotation. Height adjustable from 18.5 to 22.2 inches, matching different stature. 【All Day Comfort】The desk chair has a soft high-density sponge seat, which is covered with durable & breathable mesh fabric and has good elasticity. It is difficult to deform to keep them comfortable for long hours. Perfect for your home office, bedroom, classroom, school,computer desk, apartment, guest workstation, gaming room or conference room. This office chair is the perfect gift for family and friends.