The case is a versatile educational instrument that supports various scientific explorations. Whether used in physics classes or for individual study, it helps users visualize and understand the of magnetism. The iron inside the box dynamically to , providing a clear and engaging way to study properties. Features -Color:Black -Material:Plastic,iron -Size:5.00X5.00X0.80cm/1.97X1.97X0.31in -funny solution: the integrated design of the box, iron box, and iron filings box offers a comprehensive tool for science experiments. -Educational value: ideal for school projects and laboratory experiments, promoting active learning and engagement in physical sciences. -sturdy materials: built with sturdy materials to ensure durability and longevity, even with frequent use. -Simple operation: easy to up and use, making it ideal for both teachers and students to conduct experiments with minimal hassle. - field display: offers a clear and accurate representation of , aiding in the understanding of electromagnetic phenomena. Package list: 1pc x iron powder box