Features: Explore the fascinating world of physics with Iron Ball Electromagnetic Reciprocating Motion Model, to demonstrate magnetic field induction and Lorentz force in a hands on teaching experiment. This model features Coils systems that operates on DC24V 4A power supply, ensuring consistent performances for educational demonstrations. for educators, students, and physics enthusiasts, this electromagnetic model serves as excellent tool for enhancing understanding of complex scientific principles. for classroom or home laboratories, this device provide a practical demonstration of electromagnetic concepts, making it invaluable resource for interactive learning. With measuring 430x60x75MM, this model is easy to integrate into any educational, offering dynamic approach to exploring the law of electromagnetism. Specifications: Materials: Coppers Size:430x60x75mm/16.93x2.36x2.95inch Package Includes: 1PC Electromagnetic Motion Model note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.