Product Review

😝DESCRIPTION:
Newton's Cradle / Pendulum Balls is made JUST FOR YOU
Great gift for kids & adults - entertainment via the law of conservation of energy
Sturdy & well-made - reinforced strings, stainless steel construction
No more tangle! - strings are guaranteed to be tangle-free upon arrival
Swing one or two spheres, and then loosen your grip, because of conservation momentum and energy the other one or two balls on the opposite side will move to the same distance! If you feel upset, swing two or three balls at the same time. It can make you calm

FEATURES:
Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy
Pioneering developments for several years, we have been focusing on the exquisite technologies and physics tools. 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, working on complex analysis, or looking for a delicate gift, this goods is definitely what you really want

ATTENTION:
When you received the item,please take the balls out one by one，or the balls may be tangle up
Friction and damping effects are inevitable
Please place the Newton's Cradle horizontally, and then the balls can move longer.