3 years & up. Introduce magnetism in your next STEM lesson with these Magnetic Iron Filings in Durable Plastic for Visualizing Magnetism. These filings are encased in a plastic container to prevent messes. Simply move the magnet across the container and watch as the filings move towards it. This set promotes discovery, exploration, and early STEM concepts. Set of five blocks. Measures 3"L x 2"W.
