1. White plastic;  

2. Korean mesh; 

3. Aluminum back support, aluminum mechanism, aluminum arm support 

4. PU armpad; 

5. Korean 4 class KGS gaslift; 

6. 340mm aluminum base;

7. 65mm chromed castors.

Functions

1. Headrest: height and angle adj.;

2. Backrest: Height adj., flexible lumbar support forward and backward adj.;

3. Cable sync. controlled mechanism: seat height; seat depth; backrest angle & tilt tension adj.; the handle contro 3 functions;

4. 4D  non button Armrest: width, depth, angle and height adj..