Description This magnetic iron powder box is an essential tool for demonstrating magnetic field lines in physics experiments. It is designed for educational purposes, making it perfect for classroom settings. The box contains iron powder that reacts to magnetic fields, allowing students to visualize the invisible forces at work. This tool enhances the learning experience by providing a hands-on approach to understanding electromagnetism. Features -Color:Multi -Material:Iron powder,ABS -Size:9.00X6.00X0.80cm/3.54X2.36X0.31in -Visible magnetic fields: demonstrate the distribution of electromagnetic fields and the shape of magnetic lines of force with the iron powder box -Physics experiment teaching: ideal for physics laboratories and teaching scenarios, helping students better understand electromagnetism -Durable abs material: made from abs material, it is durable and easy to clean, ensuring longterm use -Simple and easy to use: easy to operate without additional tools, making experiments and demonstrations convenient and quick -Versatile applications: suitable for school teaching, scientific research, home experiments, and various other occasionsPackage list: 4 x magnetic field iron powder boxes