/ f$ _3 r& K- U5 R5 V3 v, g- D% t, A
( u3 ], L/ R& F+ i* ?6 m
depends on the weight of the racquet, 2u or 3u. ! I' s( R# b6 ^8 E& Y# |just by browsing any online store, you can find that info. 0 c6 l" P& x S5 G5 E) Wie. xin lan tian(in chinese) or mybadmintonsotre.com