Harbor freight has them if you have one for those near you. Also Amazon. ... Here's the 10x2mm I use https://a.co/d/016Ox6l6 Here' Facebook·Jumping Spider Newbies

If you are looking to buy "super strong" magnets, you are almost certainly looking for (also known as rare-earth magnets). These are the most powerful permanent magnets commercially available, capable of lifting objects up to 640 times their own weight. Where to Buy Reliable Magnets

: A great local option for 10-packs of small neodymium disc magnets, typically priced around $4.99. Ideal for quick workshop or DIY projects.

: Convenient for general use, but be cautious of "N52" claims that may not meet the actual standard. Reviewers suggest rectangle shapes for holding heavier items as they provide better stability than small dots. Where to find strong small magnets? - Facebook