seriousam

1st step use 6 by 6 to weight the ball公仔箱論壇* ]6 C8 z" B5 h0 p
2nd step use 3 by 3 to weight the ball公仔箱論壇* j) K4 F; B  d; I5 v) @# I4 O
last step use use 1 by 1 the last ball hold in the hand