Eiffel stool has been designed in a minimal manner so the structure itself becomes form. It is made out of aluminum so it can be use both indoors and outdoors. It is stackable so it can be put away to one side of the room, taking up very little space. It only weighs 4.4lbs so it is easy to move. In addition, it comes in a variety of colors to fit every mood.
3 legs instead of 4. It's just a matter of ergonomics and comfort. The three legs offer the same stability as a four-legged stool and greater freedom of movement when you're sitting, because legroom is not limited by a chair-leg on each side, as happens with chairs of 4.