0 {' {/ q# N, f: Z, m% K. w 9 u- Q: _. n9 m: C1 z# k3 @depends on the weight of the racquet, 2u or 3u. 4 ~" S0 n, H0 T- njust by browsing any online store, you can find that info. : A( A p8 }; f. [ ?9 @0 wie. xin lan tian(in chinese) or mybadmintonsotre.com