| 摘要 |
A golf club device is disclosed above, in which club there are contained a reinforcing member material and a fluid in the club shaft so that these contained subjects may help protect golfer arm and wrist joint at time of ball hitting by means of elbow phenomenon according as vibration generated by impact at time of ball hitting is absorbed stepwise through said fluid and said reinforcing member material as well as the flying distance of ball may be improved according as said fluid is concentrated in heart part at time of ball hitting. |
