1.Adjustment of lumbar support:sliding the lumbar support up and down can adjust its height.  

2.The back rest angle adjustment,pressing the buttons on two side of the backrest at the same time, will adjust the angle of the backrest. 

3 Adjustment of seat,gripping the lever under the right arerest can adjust the height of the seat, the height o the body will mmake seat lower when gripping the lever and releasing it.The seat will stop at the desired postion.  

4.Adjustment of backrest,lifting the lever under the left armrest can adjust the reclining of the backrest.When the body inclines the backrest, lifting the lever can lock the backrest at the proper postion. If lifting the lever again ,the backrest will be locked,it can be waggled freely again.  

5.headrest adjustment,the headpad can be adjusted to your desired height. 

61x64.5x103-115

Polished Aluminum Alloy backrest frame, and polished aluminum alloy armrest frame, seat and back cover with mesh