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Dangerous Magnets Ltd is your helpful & reputable source for incredibly strong neodymium magnets that never weaken with age.

- Keep 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.
- Magnets can pinch skin and cut clothing.
- For sensitive devices (e.g. credit cards, pacemakers, magnetic recording), keep at a distance where the field is negligible.


This is a pack of 12 amazingly powerful neodymium magnets, with durable nickel plating.

Dimensions: 15mm diameter x 2.5mm thick.
Strength rating: N45. (And N50 is rather brittle. Many magnets sold in NZ are N35 grade or lower, and are significantly weaker. One trader is even dishonestly advertised a weaker grade as N45.

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

Although these magnets are small, one can pull/push against another (or to smooth, 1.4 mm sheet steel) with a force of around 2.7 kg. Stack them for even more force.
And between 2 sheets of steel, a single magnet incredibly pulls about 11 kg!

For less, or more pull, consider our other disc sizes.

Potential Uses
- Latches & closures (Wooden boxes, doors, etc)
- Holders (Tools, curtains etc)
- Attaching documents and products for commercial display
- School or University science projects
- Clamp components while gluing.
- Secure display of work-site documents, to withstand wind.
- Commercially sewn into curtain seams to hold curtains together or to steel frames.
- Closures for manufacture of leather goods.

For our many other sizes of magnet, click "Sellers Other Listings" or search “Dangerousmagnets”. For a list without duplications, 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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