9 c4 [( ?) ]5 k0 M+ q% t$ \: G0 i1 O6 s8 G5 s
depends on the weight of the racquet, 2u or 3u. 7 ^: s2 |. M" E, h) s
just by browsing any online store, you can find that info. & W6 y- n5 k6 {- @$ s; Iie. xin lan tian(in chinese) or mybadmintonsotre.com