Note: Do not let iron filings touch your magnet, otherwise they can be very difficult to remove. Use cardboard between the filings to form a physical barrier to the test magnet.
Iron Filings Specifications:
Material: Iron (Fe3O4).
Fe content: 98%.
Package contents: 25g magnetic powder (1 small container).
Use: Magnetic flux mapping and visualisation.
Item: Iron shavings.
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