Materials:
1. Backrest: Heatless Korea mesh(KM-22)                  
2. Seat: High elastic foam wiht fabric cover.                        
3. Base: Polished aluminum star base.              
4. Castor:  Black nylon castors                                  
5. Lumbar cushion: S shape abric with sponge.                        
6. Armrest: PU cover

Functions:
1. Mechanism: Wire-controled Synchronized, multi-angle tilt lock.
2. Lumbar cushion: adjustable(up & down)                                                    
3. Seat height: Adjustable(up & down)                                                
4. Armrest: Height adjustable, left and right twistable, width applicable.
5. Seat slide: Forward& backward slidable.                                    
6. Seat tension: Seat tension adjustable.            
7. Seat pan tilting: Seat can be tilt up at 5 degrees                              
8 Seat width: Width extentable.