A compact, studentfriendly physics teaching instrument for visualizing magnetic field lines using iron powder filings and magnetic field shavings. Designed for classroom and laboratory use, it makes electromagnetic concepts easier to see and understand. Key benefits Easy to use: simple setup and clear results make it ideal for student experiments and handson learning. Precise magnetic field simulation: accurately shows magnetic field lines so students can observe field patterns and relationships. Clear illustration: iron powder filings and shavings arrange along the field lines for immediate, visual reinforcement of electromagnetic principles. Versatile: suitable for demonstrations, lab exercises, and project work across different teaching needs and experiment types. Compatible: works with common classroom magnets, including bar magnets, ring magnets, and basic electromagnet setups. Features and performance Function: visualizes magnetic field lines and patterns for teaching and experimentation. Material: uses iron powder filings and magnetic field shavings to reveal field direction and strength distribution. Performance: produces clear, repeatable field patterns that support concept learning and experimental comparison. Use environment: designed for physics classrooms, science labs, STEM workshops, and individual student experiments. Practical applications Classroom demonstration: Place a bar magnet under a sheet and sprinkle iron powder filings to reveal the magnetic field pattern during a lecture on magnetic poles and field direction. Lab experiment: Compare field shapes from different magnet types or configurations, record observations, and relate patterns to theoretical field maps. Student project: Build a simple electromagnet coil and visualize how current changes affect the surrounding magnetic field using the shavings. Who benefits Physics teachers and lab instructors looking for a reliable visual aid. Students conducting experiments to reinforce electromagnetic theory. Educational programs seeking a practical tool for handson STEM learning. This instrument provides a straightforward, accurate way to demonstrate magnetic fields and support practical learning without complex setup.