Features of pot magnets:
1. Strong magnetic force and small size;
2. The strong magnetic force is only concentrated on one side, and the other three sides are almost non-magnetic;
The magnet is not easily broken;
3. The magnetic force is equivalent to 5 times that of a magnet of the same volume;
4. It can be freely sucked or moved on the surface of iron metal;
5. Permanent magnetism and long service life.