) k# m |7 \# r * P) x$ Z" G- ?* t' T" Jdepends on the weight of the racquet, 2u or 3u. , B5 c# t' T4 R. e- ~2 g. f! t8 F
just by browsing any online store, you can find that info. + h/ i R. z; W% j0 w4 Cie. xin lan tian(in chinese) or mybadmintonsotre.com