PROW Newton's Cradle with Mirror Metal Pendulum Balls Swing Ball Fun Creative Teaching Toys (Black)

Description

According to the physical principles of the momentum conservation theorem, push one ball 、 two ball or three , you can see the different effect, there are a variety kind of way that you can play, depend on your imagination.How fantastic it is! What's more function? - hypnosis,When you do not want to sleep, will you feel pain? Then please use this, put it in the table and focus on it , when the iron ball collision , move your own eyes, ensure not long that you can sleep safely! Specification: Product Name: Newton pendulum Impact time: about 15 s Product Size: 16*8.5*11.5 cm Package Size: 16.5*9*12 cm Ball diameter: 15 mm Product weight: 280g Material: Metal balls / ABS Frame / ABS base Color: Black Package include: 1 * Newton's pendulum with mirror Note: It is not an item that never-stop working, if you know more about the law of Physics principle, you will not ask why.