Neodymium ring magnets (also known as canister magnets) are large, flat disc magnets with a tiny hole at the middle. They have been invented by a silversmith at Toledo, OH. Neodymium magnets are rather common, however they don’t have the widespread appeal that some other magnetic substances do. But it is not because they are ugly or badly made. It’s because there are a lot more other sorts of magnets available which are far better quality and much more economical.
The biggest problem with neodymium ring magnets is they tend to lose their shape a little too quickly, which causes them to lose their usefulness for several decades. If some of these get tangled up in a car, for instance, and it’s in transit, then the magnets will likely to begin hurting. They continue to be pretty robust, though, which means you probably won’t have too much trouble just pulling them apart. But the point is that the cost of replacing a worn misaligned or out magnet is much greater than the price of a fantastic excellent ndfeb ring magnet.
Luckily, there are strategies to have a good deal on these magnetic devices. You will find magnetic craft stores, like Hobby Lobby or Pier 1 Imports, that sell very cheap neodymium ring magnets as well as other similar products. However, you can also buy them from eBay, Amazon, Craigslist or directly from the manufacturer.