These magnets are great! They will jump out of your hand and smack together and could chip the nickel plating so be careful with them if you want them to stay pretty.Strong enough to damage CRT monitors and other electronics.Not recommended (by me) for children without supervision. Perfect for picking up metal objects, perhaps too much for sticking pictures to the fridge. Will hold up a 12 month calendar with no problems.You can do crazy stuff with a little imagination. Don't do the "magnetic ear ring" thing with these because you won't do it twice. Take a fool's advice and trust me on this one.
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Product Description:
Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These countersunk ring magnets are 0.750"(19.1mm) diameter x 0.200"(5.1mm) inside diameter x 0.125"(3.2mm) thick. They are magnetized through the thickness. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 5.8 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.
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