1 m# f+ A$ J2 [& U( W0 z1 K0 D7 ?0 p
/ D2 _ j+ [4 ^) i
depends on the weight of the racquet, 2u or 3u. K9 a0 C; G& M8 N- u7 {8 k
just by browsing any online store, you can find that info. / g# w$ @/ X4 g" h, [
ie. xin lan tian(in chinese) or mybadmintonsotre.com