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【High Quality】The frame is made of plastic with piano coating, lightweight. Nylon string is tough and flexible, which is not easy to break and can ensure uniform force.Solid steel ball, good vertical sense, strong force when stressed.
【How To Play】Pull back one or more of the balance balls, release them and the same number of balls will swing up on the opposite side.Usually, when under normal circumstances, because different force and environment, the swing time will be different. The balance balls continue in perpetual motion for only 15 seconds due to the resistance of the air and friction.
【Educational Science Gadget】Not only demonstrates a pendulum, but also shows the laws about conservation of momentum and energy. Perfect educational toy to embrace the story and the mystery of science.It an make people concentrate and then gradually relax, are great for psychology, science and physics classrooms.By playing this newtons cradle balls, explore significant values of physics, inspire us to better learn and understand the Newton's laws of motion.
【Wonderful Toy】This cradle with swinging can explain your child that physical knowledge and Newton's story, also help to explore the mysteries of the natural science.Suitable for children to experience the fun of mechanics in the process of playing this fun gadget.
【Multifunction】Suit for both kids and adults, excellent for killing boring time and stress release. They could experience the fun of mechanics in the process of playing this fun gadget.Perfect home or office desktop ornament to release pressure and stimulate aspiration. Also good for birthday gift .

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Description:

Excellent educational science gadget. Not only demonstrates a pendulum, but also shows the laws of conservation of momentum and energy.
The frame is made of plastic with piano coating, lightweight, exquisite and sturdy. Nylon string is tough and flexible, which is not easy to break and can ensure uniform force.
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.
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.

Specifications:

Condition: 100% Brand New
Material: Plastic Frame + Metal Ball
Color: White
Ball Diameter: approx. 1.6cm / 0.63in
Size: approx. 16*11.6*8.7cm / 6.30*4.57*3.43in
Weight: approx. 310g
Occasions: Daily use, Education supplies, Psychotherapy, Birthday present, Business gift

Package Included:
1 x Pendulum Ball

Note:
1.When you use this newton's cradle, please move it in a horizontal line, so the lines will not be tangled.
2.Please don't worry, if it was tangled, you could untangle it still, just need some patience.DIY your own cradle!
3.Please allow 1-2 cm error due to manual measurement and make sure you do not mind before ordering.
4.Please understand that colors may exist chromatic aberration as the different placement of pictures.

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