- Height adjustable by gas spring, hand remote control and remote control - Adjustable height of the backrest and seat by hand remote control - Adjustable backrest inclination - Expensive aluminum base with 5 high quality wheels - Saddle-shaped seat

- Adjustable height (by gas spring) - Popular aluminum base with 5 wheels - Saddle seat

- Adjustable height (by gas spring) - Popular aluminum base with 5 wheels - Flat and round seat

- Inlaid aluminum base. - Adjustable height (by gas spring). - 5 high quality double bearing skating type wheels. - Saddle-shaped seat.