9 E( d) a/ k' |9 O& D( y& A4 t/ L7 C8 o% S* Z+ ~! C( z d
depends on the weight of the racquet, 2u or 3u. 8 v/ |5 E" B u- R: ]& s
just by browsing any online store, you can find that info. 5 I$ X8 b l, ^0 f; ]ie. xin lan tian(in chinese) or mybadmintonsotre.com