3mm Steel Balls - 100-Pack

3mm Steel Balls - 100-Pack for Magnetic Field Demonstrations and Science Projects

✔️ 3 mm polished steel balls, pack of 100 for magnet demos and experiments

These 3 mm steel balls are polished spheres designed for magnetic field demonstrations and science projects. Use them as a substitute for iron filings to visualize magnetic fields, forming clusters and chain-like structures between unlike poles. Sold as a pack of 100, they’re handy for classroom demos, maker projects, and hobby experiments.

✅ Diameter: 3 mm polished steel spheres
✅ Material: high-polish steel with smooth finish
✅ Pack size: 100 balls per pack
✅ Applications: magnetic field demos, magnet experiments
✅ Visualization: substitute for iron filings in field demos
💡 What are steel balls used for in magnetic field demonstrations? These balls help visualize magnetic fields in a simple, hands-on way. - Handy for classroom experiments and demos - Visualize magnetic field lines between poles - Substitutes iron filings for neater demonstrations - Great for science projects and maker demos These handy steel balls deliver clear, repeatable magnetic field visuals for classrooms, labs, and hobbyists.