Luminous Science Balance Balls - Energy Conservation Model Gift Toys8008 L

Features: 1¡¢A very interesting decompression toy, the ball can be used to hit other balls and swing. 2¡¢It can visually display the law of conservation of momentum and the law of conservation of energy. 3¡¢The perfect educational science tool is also the perfect birthday gift and toy for children. 4¡¢Using high?grade plastic and sturdy steel ball materials, it is durable and long lasting. 5¡¢It can be luminous, beautiful and exquisite, suitable for home decoration, study room and desk decoration. Package included: 1 x Swing Ball Craft