1x broke in two pieces after a few hours.
These are VERY brittle, they will break VERY VERY easily. 1x is already broken after 30M only. They break when the are attracted to each other, VERY easy.
AMF Reply:
Hi David, yes – thin Neodymium magnets can be brittle. We advise following the separating and handling guide included with your order to avoid your magnets from snapping together.