¡¾ Comfortable Material¡¿Swivel mesh home office chair using breathable mesh back and high-density sponge seat padded design. The breathable mesh back allows air to circulate and keep you cool, soft seat cushion offers for all-day comfort. ¡¾S-shaped Backrest Design¡¿Ergonomic mesh office chair, fits the curvature of the human spine, fully supports the back, protects the spine, and creates a scientific and healthy sitting posture, contributes to good blood flow by reducing the pressure at the back of the legs, let your body and mesh chair perfect fit, suit long time use. ¡¾Adjustable Height¡¿You can personally adjust the height of the swivel computer chair to match your needs. The office chair seat height can be adjusted from 17 -20.9 , adjustable tilt tension and tilt lock let you find an ideal seating angle and comfortable position. ¡¾Stable & Durable¡¿The swivel home office chair with certified air rod, heavy-duty nylon bases and 360-degree swivel caster, safe, durable and solid, supports up to 250 lbs, allows you to move effortlessly from any angles, they do not produce any noises and are built to last. ¡¾Easy To Assemble¡¿Our rolling office chair comes with all parts and necessary tools you need. you can finish assembling about 20 minutes by following the instruction, you'll found it is easy to assemble