Description: DIY Physics Kits: This physics experiment pendulum ball set can enhance children's interest in physics, strengthen their understanding of physics, and improve their hands on and thinking skillsEducational Tools: This pendulum experiment equipment is a teaching aid for elementary school mathematics and physics classes, providing a hand on learning experience that can help students better understand abstract concepts in a concrete wayQuality Material: The handheld pendulum ball kits is made of iron, ensuring its durability and lifespanProduct size: The base size is 16cmx9.5cm and 40cm high, which is compact enough for easy storage, but large enough for practical usePackage Included: The package contains a set of single pendulum ball and stand and stand physics experiment set and iron stand , which is very suitable for personal use or as part of classroom teaching Specification: Material: Iron Size Chart: Base: 16cmx9.5cm/6.30inchx3.74inchHeight: 40cm/15.75inch Package Includes: 1 Physics Experiment Pendulum Ball Set Note: Please allow slightly errors 1-2cm differences due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.