Do you need the blackboard to be magnetic

These magnets have axial magnetism (on the big flat surfaces)

Color: blue

This board is very magnetic

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Pottemagnet m. indvendigt gevind, Ø20 mm. Tier1 Do you need the blackboardThese magnets are strong neodymium magnets with M4 internal threads and have a reinforcing steel pot on the exterior. You can screw this magnet directly because of the internal threads feature. This magnet has a strength capability of 7. 6 kg, which has been measured in direct pull on a thick steel plate: A pure piece of magnetic steel. Pro Tip: The more distance you have between the magnet and the magnetic surface, the weaker the magnetism level. And