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ウインザーオンラインショップヨネックス Eゾーン 98 （YONEX,ウインザーオンラインショップヨネックス Eゾーン アルファ,電動球出しテニス練習機】マイオートテニス2 (MyAutoTennis2,YONEX ヨネックス 硬式テニスラケット EZONE ALPHA Eゾーン,プリンス シエラ 25 7TJ052 [ネイビー×マゼンタ] (テニス,The Tennis Pointer also known as The Wooden Spoon is a great tool for tennis players of any age that will help you fine-tune your strokes so you can hit the sweet spot more and more and cut out on your shanksThe idea for the tennis pointer came to Czech coach Jiri Bartos in 2011 while hitting a lot of shanks. He worked with a local company to develop the concept and soon his students were benefitting.One of his first students using the tennis pointer was Jonáš Forejtek, the current Junior Australian and US Open champion, who saw many benefits from using the pointer.It can be used for all your strokes. It will also help fine-tune your service toss which will result in improvements in your serve by teaching a more consistent toss.重量（g）···305 〜 319.9g