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Dangerous Magnets Ltd is your helpful & reputable source for incredibly strong neodymium magnets that NEVER WEAKEN WITH AGE.

I am a scrupulously honest trader.

- Keep Neodymium Magnets from young children! If two or more are swallowed they can be lethal, by attracting across gut tissue and puncturing it.
- The material is brittle so it can chip or break if magnets crash together. Eye protection advised.
- Neodymium Magnets can pinch skin and cut clothing.
- For sensitive devices, e.g. credit cards & pacemakers, keep neodymium magnets at a distance where the field is negligible.

Neodymium magnets are about 10 times more powerful than traditional magnets.


This is a pack of 8 very powerful neodymium magnets, also known as "rare earth" magnets, double nickel plated for durability.

Dimensions: 10mm diameter x 10mm long.

Strength: These neodymium magnets have a pull/push of around 4.3 kg between magnets, or to 1.65mm sheet steel.

Strength Rating: GENUINE N45. Note that when I bought CHEAP neodymium magnets from China they were definitely weaker than the stated and certified grade, so I have sourced a supplier that is honest about the grade and quality of these neodymium magnets.

Potential Uses for these magnets:
- School or university science projects, eg homopole motor, Gauss canon.
- Latches & closures (Wooden boxes, doors, etc)
- Holders (Tools, curtains etc)
- Frictionless spring (either tension or compression)
- Attaching documents and products for commercial display
- Use neodymium magnets with iron sand or iron filings to learn about magnetic fields.
- Secure display of work-site design drawings to withstand wind.
- Clamp components while gluing.

Buy other neodymium magnets and combine shipping. Quantity discounts available.

For my many other sizes of neodyumium magnet, click "Sellers Other Listings" or search “Dangerousmagnets”. For a list without duplicates that takes you to Trademe auctions: Please read the questions and answers for this listing.
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Shipping options

  • Courier. All Fastway Rural Delivery, incl Auck.$12.00
  • Courier. Nationwide - Non Rural Delivery$6.00
  • Pickup, from the Onehunga end of Hillsborough$0.00
  • Additional item (= or higher courier already paid)$0.00
  • PO Boxes, i.e. DON'T! Courier cannot deliver.$50.00
  • Seller allows pick-ups
  • Seller location: Auckland City, Auckland, NZ

Payment options

  • Other options
    Cash, NZ bank deposit

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