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Nimomo Magnetic Field Viewer Card, 50 * 50mm Card Magnet Pattern Viewing Film for Scientific Observation Use
Large Magnetic Field Paper for Science, Education, Experiments, Students, and Teachers - 305mm x 305mm
Iron Filings for Science, Education, Experiments, Students, and Teachers - 80g
Magnetic Viewer - 50 x 50 mm Field Magnetic Viewer Card Magnetic Pattern Viewing Film for Scientific Observations
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