| 摘要 |
A device for eliminating the twisting and accompanying stress associated with yo-yo strings during operation by providing for rotation of the string about its central elongate axis without rotation of the yo-yo. The device of the present invention is inserted in-line between the yo-yo and the operator grip. The device includes two segments attached by a pivotal axis concentric with the string central axis. The string is divided into two segments, a device-yo-yo segment and a device-operator segment.
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