adjustable hight stool with excellent static free function

            Laboratory Chair Without a back or arms 
Adjustable high scope:about 440-600 MM,                            

The chair noodles diameter: 320 MMs probably, 340 MMs can choose. Seat thickness:  35-40MM.                                                                                       

Seat material: Expanded PU                                                     

Frame   Steel - Black                                                                     
Base : The steel plates chrome five planets feet, the legs of chair radius 240 MMs, the high strength bears to whet a nylon feet cup, and the metals conducts electricity a chain.                                                                               

Lumbar Support :360° Swivel  Stain Resistant,Pneumatic Adjustment