Garosa 8 x 7 x 9 cm Newton’s Laws Pendulum Balls Newtons Balance Metal Swinging Balls Office Desk Decoration for Office Physics Toys Crafts

Features

• Pull one or more balls backwards, release them, and the same number of balls will swing on the other side.
• An excellent educational science tool shows the swing, but also the law of conservation of momentum and energy.
• Owning scientific history and exploring the important value of physics, suitable for birthday gift and children’s toy.
• Interesting and suitable for decoration, for home decoration, study or office table decoration accessories.
• When you are tired of studying and working, you can stir the ball to hear the jingling sound to reduce stress.