| 摘要 |
A toy device adapted to be held in the hand by a handle which supports a plurality of spaced arms between each pair of which there is rotatably supported on a pin extending between the arms a ball which may be rotated about the pin, the arrangement being such that one of the balls may rotate about the pin in one direction while another of the balls may be rotated about the pin in the opposite direction or be stationary depending upon the skill of the operator.
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