Formidable as regards the ability to hold the balance.
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Once perched on it, the feet in a vise on the central ball, the movements of rebounds that he is going to have to be to take it will rapidly due to beginners.
What makes it a true learning tool.
The ball central of the spinning top is inflatable with a ball pump.
Dimensions : Diameter of the ball 15 cm, Diameter of base 37 cm - 880g