Product: DOTSOG Newtons Cradle Classic Newton's Cradle Balance Balls Desk Home Decorations for Office Physics Teacher Toys Steel Ball
Brand: DOTSOG
Principle: Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.  Attention: Friction and damping effects are inevitable   This classic desktop toy provides you many benefits and entertainments, is suitable for various locations such as house or office, and is an intriguing device that not only demonstrates pendulum motion, but also helps to show the laws of Conservation of Momentum and Energy. Whether you are studying physics knowledge or looking for a delicate gift, this balance ball is definitely what you really want.   Specifications:  Size: 5.5x5.1x4.4 in  Material: Solid plastic base +Stainless steel balls & structure  Occasions: Daily use, Education supplies, Psychotherapy, Birthday present, Business gift   Package:  1x Frame with 5 balls  1x Wooden Base   Warm Prompt:  When you use this newton's cradle, please move it in a horizontal line, so the lines will not be tangled.  Please don't worry, if it was tangled, you could untangle it still, just need some patience.DIY your own cradle!
Strong line-- Our newton cradle use high quality nylon line which is strong enough to not be broken easily
Swing Time--The balance balls continue in perpetual motion for only 15-20 seconds due to the resistance of the air and friction, but it won't influence the effect of playing although it can not reach the seamless convergence among balls in the vacuum.
You can put it on your office desk or your home desk or on your shelf. It will be cool desk toy
Satisfaction Guranteed-- Buy from DOTSOG Buy for 100% Satisfaction.

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