Description: 【Pendulum Experiment Equipment】 This is a single pendulum ball physics experiment kit, great teaching instrument for both classroom demonstrations and individual student use 【Interactive Learning】The kit encourages interactive learning, helping students understand the principles of pendulum motion, and potential energy, and the laws of physics through direct observation and experimentation 【Compact Size】With a base measures11.5cmx9cm, 44cm in height, easy to handle, so that this experimental demonstration is more intuitive 【Ideal Teaching Tool】Whether you're a teacher, parent, or student, this kit is great way to spark interest in physics and science, making it a must have for any educational setting 【Wide Application】Great for home, school class use. Also ideal Birthday and Christmas gift for kids, enjoy the DIY experiments fun while learning basic physical science knowledge Specification: Material: Metal Size Chart: 11.5cmx9cmx44cm/4.53inchx3.54inchx17.32inch Package Includes: 1 Physics Pendulum Ball Demonstration Tool Kit