Stressfree

1   weight 6 ping pongs with another 6 ping pongs. see which side is heaviertvb now,tvbnow,bttvb6 a! x; m1 n# z# v& H& k* P& s
2   spilt the heavier side ping pongs in half and weight against each other
4 |, _# o) {; d/ _% KTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。3   weiht either ping pongs one on one then you will know which is the heavy one.