3 o# f& a3 Q; A" O0 a/ h6 P5 `) K: ?+ Z; q5 ~9 c4 o" j. @
depends on the weight of the racquet, 2u or 3u. , a4 V0 }8 S4 o$ ~
just by browsing any online store, you can find that info. 6 S3 r3 U/ k7 |4 _5 rie. xin lan tian(in chinese) or mybadmintonsotre.com