ergonomic black mesh office relaxing chair with headrest executive swivel office chair

ergonomic black mesh office relaxing chair with headrest swivel office chair
Function instruction
1- Seat&Back: tilt tension, tilting & locking function can be adjusted for user’s need.
2- Seat height: adjust up/down easily according to needs;
3- Back support: with lumbar support for lumbar protection;
4- Chair revolving freely 360 degree;
5- Base: Smoothly and easily rotating
6- Color: Black, Brown, Blue, Red, Green, Orange, Yellow, Grey, or client’s color