The magnets are strong, and there has been no discoloring/fading. The magnet is very strong with little worry of it coming off before you want it to. The clasp is large enough to be pleasing to the eye when working with larger beaded necklaces.
They're not built to last, they are built to be broken within a few weeks to a few months.
Very reliable reviews you can trust
Mostly unreliable reviews. Do more research before proceeding