Perpetual Move Machine Small Iron Man Balancing

4.95 out of 5 based on 20 customer ratings
(20 customer reviews )

$8.40 $8.00

According to the principle of leverage, the role of a heavy object can be replaced by the role of several uniform distributions of heavy objects, as long as small iron man keep in the same position, the weight of the two ball the same, the fulcrum position is unchanged, so a small iron man can rotate freely, steady does not fall.

This metal balance man can help to relax your leisure time when in office, also do good help to release pressure when in hard study.

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