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4mm magnet

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4mm magnet Customers Reviews

  • Pretty funny

    posted by enryf89

    Good quality magnets.They are also pretty strong.Nice smooth edges. You cannot run into the possibility of cutting yourselves.Nice chroming.
    It's almost impossible to lose a cube as they tend to stick together very firmly.I imagined them to be bigger but there it's my fault, the dimensions are clearly stated.You will enjoy them.
    These magnets offer you a quite funny time. You can play with them and combine them in many different combinations.Just remember to keep the away from your electronic gadgets as they don't really like strong magnetic fields.
  • My son is still building things...

    posted by sisyphist

    These are remarkably powerful magnets for their size - one magnet can hold up one piece of paper on our fridge. That doesn't sound like much, but they're tiny! More importantly, you can fashion them into some neat patterns.
    We wrapped a coil of wire around a straw, hooked its ends up to a volt meter, and pushed a 'cylinder' of the magnets into and out of the straw, so my son could see how magnets moving past a conductor generates current! Worked really well.
    Great little magnets for hobby use!

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