4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, Scientific Project Teaching, Automatic and Reusable Recovery

Magnetic field display: Visualize the magnetic field lines of different objects and magnets, just use the magnetic field stays on the film and clearly displays the magnet's magnetic field line pattern. Different colors represent different magnetic field strengths.
High quality: Magnetic field paper is made of plastic film containing fine nickel-iron magnetic slurry, and the outer frame can fix and protect the film. 4 inches long x 6 inches wide (100mm*150mm)
Widely used in daily life - ideal for observing various magnets such as samarium cobalt, alnico, neodymium and flexible magnets. Get a clear view of magnetic fields in objects (a magnetic clasp on a door, a speaker on your phone, or a hidden buckle on your handbag).
Reusable: Our magnetic field viewer is reusable and automatically recovers after use. This is a fun way to discover magnets in objects - the magnetic buckle on your laptop, the speaker on your phone, or the door seal on your refrigerator!
Great tool for education: a fun way to discover and analyze magnets in objects, opening your mind to calculating the value of magnetic fields. It is an excellent educational tool for magnetism research and analysis!

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