This classic physics toy demonstrates energy transfer by swinging steel balls, making it both educational and entertaining. Pull back one ball and release it to see the kinetic chain reaction. The cradle is compact, standing 4 1/2 inches high on a black base, and is perfect for desktops or coffee tables. Suitable for ages 5 years and up.
We love it for its blend of scientific learning and playful interaction, making it a delightful desktop accessory for curious minds.