" {" c: S+ X5 Q* b! o1 n $ M! F0 S8 M9 E9 L8 j/ r6 U* xdepends on the weight of the racquet, 2u or 3u. j; j( l. K2 B
just by browsing any online store, you can find that info. # t) m5 V) b- C" H$ W+ A) v6 Q% Yie. xin lan tian(in chinese) or mybadmintonsotre.com