These glass balls are environmentally friendly, non-toxic and are designed to last for a long time Science toy. When feeling tired of studying and working, you can stir balls to hear the clinking sound to ease Install batteries, it will light up on the base board, and the balls will look colorful and beautiful, very attractive Excellent educational science gadget. Not only demonstrates a pendulum, but also shows the laws of conservation of momentum and energy Great for home ornament, study or office desk table decor accessories, etc. Also good for birthday gift and kids toy
Manufacturer: Emoshayoga
Brand: Emoshayoga
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