luxury high back genuine leather executive office chair big and tall manager chair

Office chair ,lifting lie down executive ergonomic luxury back chrome feet synthetic pu leather office chair
Function instruction
1.Back tilting:without tilt lock , easily adjusted according to human ergonomic design ;
2.Seat height:adjust up/down easily according to need;
3.Back support: ergonomic design for back support;
4.Chair revolving freely 360 degree ;
5.Base: smoothly and easily rotating