Advantages of NdFeB neodymium magnets: Neodymium magnets or NdFeb magnets have a strong fixing force when touching another magnet or ordinary iron, which is very difficult to pull apart (but easy to slide).
There are considerable strongholds between two of them, even if there are only a few millimeters between them.
Neodymium magnets (neodymium iron boron magnets or rare earth magnets) are the strongest permanent magnets ever built.

Disadvantages of neodymium magnets: Neodymium magnets or NdFeb magnets cannot exceed the maximum size, because the magnetization will spread out, leaving a weaker magnet.
Of course, you can pile them together, but sometimes it’s not the same thing.
If you are looking for a strong magnet of Ndfeb Magnet Price low, you need a neodymium magnet or NdFeb magnet.