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About this Deal
|Newton's cradle balance balls|
Every action has an equal but opposite reaction-right before your very eyes
Science demonstrated clearly and simply and with a touch of a amusement
To play with the balance ball is a game of fun. If you pull up one ball and release, you will see only one ball move from that reaction. If you pull up two balls, two balls will react
Dimensions (cm): 9 x 8.8 x 7.5
Weight (kg): 0.083