MIKEDENeodymium Magnet Super Strong Rare Earth Magnets for Stud Finder and Science Project - One Piece

Very strong magnets! They are nicely polished and great quality

So, I would say that they are strong! I tried to put them together to see HOW strong they were, and when they got within inches of each other, it was like the Earth pulled the Moon out of its orbit. The collision was very exciting. There was a huge spark (of fire) and a loud "breaking" noise - if that makes sense - as the two (2) magnets attracted each other abruptly. And when they connected, chunks of debris from each magnet went everywhere. Of course, I used the bigger chunks to find the smaller chunks.So, no fault of Amazon or manufacturer. Just dumb luck I guess. Never got to use them. However ...The magnets themselves are meaty (heavy, solid). They come individually in separate boxes, surrounded by about an inch of molded, polyethylene (I believe) padding; unblemished.The first thing I tried to test them with was my laser engraver bed, which, turned out to be aluminum, and didn't work. Hence, the two-magnet-attraction test. I do believe they would have worked well for my application if I'd had the change to use them.Lesson learned. By one (1), or keep two (2) or more very separated.Good luck!

Very powerful magnet, pleased with performance for the price

I ordered a shirt that came with a security tag attached. Sure, I could have figured another way to get it off, but powerful magnets are cool, and this one didn't break the bank. It immediately withdrew the pin from the security tag, and even when returned to its foam case and placed back in its box had enough of a magnetic field to stick to the fridge.Ordering a second one of these might be very dangerous.

One inch by one inch is precise for the size, very strong, watch yours fingers and not very durable can easily break the outside

I am using this for a printer! The label roll keeps sliding which ruins the alignment of the label. This helps secure the label roll.However its a little scary watching videos of fingers getting crushed by these magnets.I wear some gloves and use cloth to remove and place magnets!

These things are effing dangerous!! There are zero warnings about what these could possibly do if you are not careful ENOUGH! Sadly I was not:( Smashed three of my fingers to bleeding and I was being very careful! So be EVEN MORE CAREFUL WHEN HANDLING

If you have a pacemaker I would beware. No joke. There is a piece of plastic in between the two magnets when they arrive and I’m thankful I didn’t have to separate them. Not a toy. They worked perfectly for what I wanted them for.