2 pieces Newton pendulum ball, Newton balance ball, physical swing magnetic, educational toy, perfect for decoration in offices, homes and other indoor places. (burgundy bottom, black bottom)

【Package Contents】You will receive 2 pieces of Newton pendulum balls, measuring 9*7.5*9.5cm, stimulating children's imagination and becoming perfect desktop decorations. 【Material】Ours are made of plastic and solid metal ball material, which is bright, anti-corrosion and not easy to rust, and can be used for a long time. 【Demonstration Rules】This self-balancing ball not only demonstrates the laws of motion and conservation of energy, but also features a series of rotating spheres that are able to maintain motion without losing kinetic energy due to resistance. 【Stress Relief】Suitable for both children and adults, the swing-style magnetic balls are perfect for eliminating boredom and reducing stress, and add personality to any office or home workspace. 【Versatile Use】The balance ball tabletop toy is a fun and engaging stress-relieving tool that can be used to swing one ball toward another. It has a variety of interesting interactive gameplay and is easy to capture children's imagination., Manufacturer: OAAO