Thread: Magnets 101

Ok folks

I am needing to make up a resettable mouse trap and been busy with you tube. Quite a few of the ideas are using small magnets and I have realised that I know bugger all about them other than there's a + and - end and had a play wih a few as a kid. Can anyone shed some light on different strengths, materials etc. The ones people are using for traps are small button ones, think I'll order some of aliexpress but there are rather a few to chose from!!