Balanced Ball Educational Toys, Interesting Table Decoration Excellent Educational Science Tool 3.1 x 2.8 x 3.5 in Balanced Ball Toys, for Office Home Decoration

【GREAT CONSTRUCTION】The balanced ball educational toy is pull one or more balls backwards, release and the same number of balls will swing on the other side. And solid steel ball, good sense of vertical sense, strong force when applied. 【EDUCATIONAL】It is an excellent educational scientific tool shows the swing, as well as the law of conservation of momentum and energy. Own scientific history and explore the important value of physics, suitable as a birthday gift and children's toys. 【SIMPLE STYLE AND STRESS RELEASE】When you are tired of studying and working, you can move the ball to hear the ringing sound to reduce stress. Interesting and suitable for decoration, perfect for home decoration. 【OFFICE DESK DECOR】The balanced ball toys have interesting and suitable for decoration, perfect for home decoration, study or office table decoration accessories. Show some character and express your love for science and physics with this decoration for your office space. 【100% SATISFACTION 】We always strive to provide our customers with the best service and products. Please feel free to contact our professional after-sales service if you have any questions, we will give you as satisfactory answer as soon as possible! Thank you for your understanding.