DIYMAG 4 Pack Strong Neodymium Bar Magnets，Powerful Rare Earth Magnets Heavy Duty Metal Neodymium Magnet with Double-Sided Adhesive for Fridge Kitchen DIY Craft and Office Science, 40x10x5mm

These magnets are very strong and you have to be careful when working with them. Care must be used not to allow these magnets to contact one another. They are very difficult to separate when attached together. The pull is so strong between them that they could break if allowed to slam into each other.

Strong and work as I intended. I read reviews of people receiving theirs broken but mine are perfectly fine.

Magnets are strong, I give em that. But the magnets crack/break often when magnetized to a surface or another magnet. Idk if that’s a common thing for magnets or a reflection of its quality. Good thing is when one magnet breaks, it becomes 2 magnets.

I had to buy these last minute for my son's science fair project and I must say, it's really strong!! And I was shocked at how good the price was.

I got these because I was tired of wasting money on cheap, weak magnets that crumbled into pieces after five minutes of normal use. I wanted to try them with my many cat's eye gel polishes and believe me when I say these did not disappoint!! They work great! I also got them because they were black and that's my favorite color.

Worked to hold a Coghlans double size mosquito net across the back of my pick up truck camper cover and bed in place for days and through storms as well while camping for four days.

My son was going to use these magnets for a science fair project, but they broke into small dangerous shards almost immediately from removing. We follow the directions in pulling apart slowly, but almost all of them broke within five minutes. Obviously, we returned these and will not be ordering again

Very strong and good magnets.

Si petites mais si puissantes!