Yosooo Cradle Balance Steel Balls Physics Science Psychology Puzzle Desk Fun Gadgets Pendulum Ornaments Toy with Wooden Base

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. Manufactured by Yosooo. 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. Excellent educational science gadget. Not only demonstrates a pendulum but also shows the laws of conservation of momentum and energy.