Zerodis Newton's Cradle Balance Balls, Physics Science Steel Pendulum Ornaments Educational Toy for Home Office Desk (B)

【EDUCATIONAL SCIENCE GADGET】Not only demonstrates a pendulum, but also shows the principles of kinetic energy and conservation of momentum. 【REDUCED PRESSURE TOY】When feeling tired of studying and working, you can stir balls to hear the clinking sound to ease. 【EDUTAINMENT】Both adults and children could experience the fun of mechanics in the process of playing this fun gadget and explore significant values of physics. 【HOW TO PLAY】Pull back or more of the balance balls, release them and the same number of balls will swing up on the opposite side. 【GREAT ORNAMENT】Perfect home or office desktop ornament to release pressure and stimulate aspiration. Also good for birthday gift and kids toy., Manufacturer: Zerodis