Newton's Cradle Steel Balance Balls Desk Physics Science Pendulum Toy Wine Red+Silver

Features:Made of high quality material, safe and durable to use.Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.Friction and damping effects are also observed.Often used as a toy to amuse people.Package Included: steel balls, plastic frames and base.Great gift for everyone.Descriptions:DIY Eco-friendly,Exquisite Workmanship.A Top Birthday,Party,Festival,etc.gifts, for friends,kids,lovers.A nice choice to home office table decoration and teaching model.When feeling tired of studying and working, you can stir balls to hear the clinking sound to ease;Applicable to desk and household decoration, birthday gift.Specifications:Material: steel balls, plastic framesSize: 76*90*95MMColor:Wine red+SilverPackage Included:1 x Newton's Cradle Balance Balls Desk Toy