7k Head Rest Revolving Office Chair AF-MG-51

Description7k Head Rest Revolving Office Chair AF-MG-511.Back tilting: tilt tension , tilting & locking control in different angles , easily adjusted according to human ergonomic design ;2.Seat height: adjust up/down easily according to needs ;3.Back support: with lumbar support height adjustable for lumbar protection ;4.Chair revolving freely 360 degree ;5.Base: smoothly and easily rotating6.height adjust:height adjustable option is there1 year warranty