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Review on πŸ’ͺ Powerful Neodymium Magnet NdFeB Earth - 4 Count for Enhanced Magnetic Applications! by Colin Watkins

Revainrating 5 out of 5

. This is for a ferrofluid experiment and they worked great. I was able to use them safely for several hours.

Used them for ferrofluid experiments and they worked great. I was able to use them safely for a few hours and then forgot to put one in my pocket before taking out the other and WHAM, ferrofluid all over! They are incredibly strong, only use one at a time and never side by side. I wrapped it in bubble wrap for my daughter's science fair and only allowed her to touch the magnet, no one else.

Pros
  • Industrial magnets
Cons
  • old