This ergonomic office chair:designed base on biological curvature of human's back. Provide full support to your lumbar, back and head during long working hours.High quality material: The breathable mesh back not only provide soft and bouncy support to the back, but also let body heat and air go through and maintain a fine skin temperature.Pu silent wheel can roll smoothly, harmless to wood floor.Adjustable: The back can be adjusted from 60-135 degree according to individuals habits.
