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CMS MAGNETICS - 12 x 12" Magnetochromic and Monochromic Magnetic Flux Viewing Film for Revealing Hidden Magnetic Field Patterns in Ceramic and Neodymium Magnets, STEM Education Research Projects in Magnetism: Magnetism Science
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Amazon.com: Magnetic Field Viewing Film 4"x4", Magnetic Flux Display, Magnet Pattern Detector, Scientific Project Teaching, Reusable and Automatic Recovery - Brownish Yellow : Electronics
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CMS Magnetics 4"x6" Green Magnetic Viewing Film - Magnet Paper for Showing Magnetic Field - Walmart.com
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