DIYMAG 12 Pack Strong Neodymium Bar Magnets,Black 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.

I purchased the DIYMAG Strong Neodymium Bar Magnets. The magnets arrived with plastic separators between them indicating their strength and difficulty to separate. I have attached the magnets to task lights, solar lights, and an egg timer. The magnets stay connected to metal surfaces very well. I also use the magnets to keep a sunroof screen on the car when parked during the summer. To not scratch the paint, I wrap the magnets in duct tape. The magnets can be used for a variety of things. I have purchased them several times and will purchase more when needed. On occasion I have broken the magnets in two when separating them. It does not affect their strength, durability or function. They are great, strong magnets.

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.

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

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.

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

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.

They are not very good.

Si petites mais si puissantes!