This iconic science toy has been updated to make a classy desk accessory. Featuring stainless steel frame and 5 balls. Simply lift one ball and let it do to watch conserved momentum and energy work in front of you! This is the smallest in our range at 9cm tall. Ages: 9 +

MANUFACTURER'S DESCRIPTIONThis iconic science toy has been updated to make a classy desk accessory. Featuring stainless steel frame and 5 balls. Simply lift one ball and let it do to watch conserved momentum and energy work in front of you! This is the smallest in our range at 9cm tall. Ages: 9 +