The iron powder box is a versatile teaching instrument that can be used in various science experiments. Its compact design makes it easy to transport and store, making it ideal for both classroom and home use. The iron powder inside the box is finely ground to ensure accurate and clear demonstrations of , helping students grasp concepts with ease. Features -Color:Multi -Material:Iron powder,ABS -Size:9.00X6.00X0.80cm/3.54X2.36X0.31in -Clear magnetic field visualization: the iron powder box provides a clear and intuitive display of electromagnetic field distribution and magnetic lines -Educational tool for physics: perfect for use in physics labs and classrooms, aiding students in comprehending electromagnetism concepts - and easy maintenance: constructed with abs material, it is built to last and easy to maintain -Userfriendly operation: no extra tools required, allowing for and efficient experiment execution -Multiple usage scenarios: applicable in educational settings, scientific research, home experiments, and more Package list: 4 x magnetic field iron powder boxes