Description: Inertia Demonstrator Physics Demos This is an Inertia Demonstrator, a simple and effective way to demonstrate the concept of inertia using an inertia ball and a stationary object. MaterialThe inertia ball stationary object demonstrator is made of pp and metal materials that ensures its longevity and functionality. Compact SizeThe inertia demonstrator measures 16cmx10cm, making it compact and easy to handle during experiments or demonstrations. Educational ToolIdeal for physics teaching and learning, this demonstrator helps in understanding the concept of inertia in a practical way. Wide ApplicationGreat for home, school class use. Also ideal Birthday and Christmas gift for kids, children in middle school, can enjoy DIY experiments fun while learning basic physical science knowledge. Specification: Material: PP, Metal Size Chart: Inertia Demonstrator: 16cmx10cm/6.30inchx3.94inch Package Includes: 1 setInertia Demonstrator Physics Teaching Equipment