WOHOT Newton Cradle Balance Ball,Large 18cm Newton Pendulum,5 Physical Swinging Magnetic Balls, Educational Science Office Desk Toy Stress Relief Gift

【High-quality Materials】The Newtons cradle is made of high-quality metal steel and solid wood base and nylon wire. It is more durable and will not break easily. It is bright, anti-corrosive and not easy to rust. It can be used for a long time 【Perfect Educational Newton Ball】According to the laws of conservation of momentum and conservation of energy, the metal ball will not swing forever due to resistance. Usually, under normal circumstances, the ball will swing for about 15-30 seconds. However, due to different forces and environments, the swing time will also be different. The perfect educational decoration that can embrace the mysteries of stories and science 【Excellent Table Decoration】This is a very interesting decompression newton ball that can hit other balls with one ball and swing. (Mini cradle ball, please do not swing the metal ball vigorously) It is very suitable for decoration in offices, homes and other indoor places 【Stress Relief】Suitable for children and adults, ideal for eliminating boring time and stress relief. It is a high-quality desk decoration for an office or home. The device demonstrates Newton's conservation of momentum and energy through a series of rotating spheres of the same size. When a ball at the end is lifted and released, the resultant force passes through the line and pushes the last ball outward 【The Best Choice for Gift Giving】A cradle with a cradle can explain your child's physical knowledge and Newton's story, and it can also help you explore the mysteries of natural science. This is an interesting gift for your friends, family and children, Manufacturer: Evance