LE Newton's Cradle, Metal Balance Ball
An house or office decorationEasy to install and uninstallHigh class material and very good apperanceLet your room have more funNewton's apple treeNotice: It is not an item that never stop working, if you know more about the law of energy conservation, you will not ask why.For us, it is no need to know why apples fall, just play and have fun!