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Here are 4 basic rules for a stable forehand. If you fully understand and master the 4 basic rules, your forehand will be intermediate to advanced level or higher. [Tennis equipment and related products] Come and visit I-Lesson Mall, where you can find rackets, balls, tennis shoes, tennis clothing, and other tennis equipment~ http://smartstore.naver.com/e-mall2020 #Tennis #tennis #I-Lesson