FTVOGUE Newton's Cradle Balance Steel Balls Physics Science Pendulum Ball Desk Ornaments Toy

♣ Excellent educational science gadget. Not only demonstrates a pendulum, but also shows the laws of conservation of momentum and energy. ♣ Science toy. When feeling tired of studying and working, you can stir balls to hear the clinking sound to ease. ♣ Excellent educational & science gadget, own your very own piece of scientific history and explore significant values of physics. ♣ Pull back one or more of the balance balls, release them and the same number of balls will swing up on the opposite side. ♣ Great for home ornament, study or office desk table decor accessories, etc. Also good for birthday gift and kids toy., Manufacturer: FTVOGUE