Homdox Ergonomic Office Chair with Mesh Padded Seat, Dual Wheel Casters, 360 Degree Swivel Mid-Back Black Chair for Office, Family, Conference Room and Computer Desk Material: The mid back mesh chair made of high density and high strength polyester mesh material and soft foam padded mesh seat. So you can feel cool and breathable when sitting on it, and that is also prevent fire and dirty Design: Fashionable design, high quality mesh office chairs, Dual Wheel Casters , quite hydraulic gas lift, 360 Degree Swivel. Comfortable: Adopt high quality material, the back mesh and Mesh Padded Seat can provide exceptional back support and to prevent body heat and moisture build up. High: Adjustable Height from 32-2/5 inches to 36-1/3 inches, so it is suitable for your employee, office, home warranty: Passed 3M test, SGS and BIMFA test; 1-year manufactor guarantee.