Info Neodymium Magnets Count: 1 Hardware ID: 00000 Location: MP201 Used in the following activities: demo Magnetic Field (3D) experiment Homopolar Motor demo Lenz's Law (Eddy Currents) video embedded demo Eddy Currents: Magnetic vs Non-Magnetic Materials video embedded Strong neodymium magnets of various sizes are available. 1" dia x 1" thick 3/8" dia x 1/10" thick