Would you guess the common challenge a Magnet is facing? Rust.
By composition, the main material of a Neodymium Magnet is Iron which can easily oxidize in humid environments, destroying the coating of it.
For this reason, using Magnets outdoor could not be the best option.
This is why we have found a solution by creating 3 different kind of anti rust Magnet:

SM08, with threaded stern;

SM22, with threaded hole;

SM35, totally folded with rubber

Let's visit our PRODUCTS / NEODYMIUM MAGNETIC SYSTEM and discover all our items.
For every code you can  find dimensions and strengths in order to find the better magnet for your needs.