- ✤✤It is a very funny decompression toy that a ball can be used to hit other balls and swing.
- ✤✤This balanced swinging ball can move smoothly. Not only demonstrates a pendulum, but also shows the laws about conservation of momentum and energy.
- ✤✤Perfect for decorating in the office, home and other indoor places.
- ✤✤Made of high quality stainless steel material and durable wooden base, which is bright, preservative and not easy to rusty, it can be served for a long time.
- ✤✤Can explain your child that physical knowledge, also help to explore the mysteries of the natural science, a funny gift to your friends, family and children.
URRNDD Newton's Cradle
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