Fdit Newton'S Cradle Balance Steel Balls Physics Science Home Office Desk Ornaments Decoration Birthday Gift Toy (Coloful)

SCIENCE TOY: when you feel tired of study and work, you can mix to hear the sound balls tinkling to facilitate INSTALLATION BATTETY: turns on the base, and the coloured balls will appear and Belle, very attractive EXCELLENT EDUCATIONAL SCIENTIfIC GADGET: not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy WIDE USE: Great for the decor of the house, to the ornament for your desk or office, etc Good also for birthday gift and toy for children AFTER-SALES GUARANTEE: We are very concerned about the feelings of customers. The product is delicate and fragile. If you receive any damage to the product, please contact us in time., Manufacturer: Fdit