1 P) V1 l9 Z/ ^# Q3 q8 b
# U8 a# K: h3 N' f7 S4 u. Y
depends on the weight of the racquet, 2u or 3u. 1 ^, N% K8 @2 O" S4 X
just by browsing any online store, you can find that info. " |! }3 P- o# p/ E" @" Z& l3 gie. xin lan tian(in chinese) or mybadmintonsotre.com