| 摘要 |
This golf club has a device (11) for housing a ball, mounted on the shaft part of the golf club, and an orientation device (20) which comprises a transparent hollow sphere (21), held by the device (11) for housing a ball and containing a certain quantity of liquid (22) which forms a positioning bubble (23) inside the transparent hollow sphere (21). The transparent hollow sphere (21) is provided with markings (211).
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