Until you have actually used rare-earth magnets, you cannot appreciate their strength. The strength of these magnets has to do with the electron array in the neodymium, the rare earth they are made from. This force only increases with the magnet’s dimensional size.

Nickel plated with slightly rounded edges, they can be glued in place with almost any glue (epoxy is the most secure).

Refer to table below to help with inch fractions