練習等級

頻率

適合進階羽球員於競賽中使用。

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https://contents.mediadecathlon.com/p2703111/k$d989e833223b275d265074a5bff89760/p2703111.jpg

https://contents.mediadecathlon.com//k$003f72dd58bfa9147f89dee9630facfe/.jpg