| 摘要 |
A sleeve includes an inner sleeve part securely fitted on a handle end portion of a golf club, and two outer sleeve parts; the inner sleeve part has circular concavities spaced apart on an outer side thereof; the outer sleeve parts are positioned around the inner sleeve part, and each stuck to the inner sleeve part at two ends thereof in a sealing manner such that an air containing sealed room is formed between it and the inner sleeve part, making the sleeve capable of functioning like an air cushion with increased capability to absorb reaction force from hitting a golf ball.
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