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Great for Using in Science Fair Projects Create electrical currents you can "see" while you experiment with attraction and repulsion with this teacher designed kit. Discover why magnets attract as you follow the activity guide for using the included neodymium and ceramic magnets, iron filings, and aluminum, copper, plastic & vinyl tubes and more. Features 5 experiments exploring Lenz s Law. For ages 10+. IMPORTANT SAFETY INFORMATION WARNING:. HAZARDOUS MAGNET This product contains small magnet(s). Swallowed magnets can stick to intestines causing serious injury or death. Seek immediate medical attention if magnets are swallowed or inhaled.