These are very strong and very affordable. I use them to locate wall studs and they work great! The little plastic spacers between the magnets are brittle and will crack after a while. Once that happens your super-strong neodymium magnets are stuck together (I've been unable to pry them apart, but remain hopeful). DON'T put your fingers between these magnets as they tend to fly together in close proximity. Also, don't leave them around ANY magnetic media as these magnets will wipe them clean. I store mine on the side of my refrigerator (in the supplied tube) and that's worked well so far. A highly recommended purchase for your extreme magnetic needs, just use a bit of caution because these serious magnets are NOT TOYS.
I used these to hold Teflon sheet onto a heat press. WORKS GREAT!!
These are STRONG and BRITTLE, which they do warn you of on the enclosed note. That said, when I tried to pull the first magnet off the stack, it flew back onto the other magnets and shattered.
Very strong magnetics. I can't wait to see my son in action with is science projects.
Just opened it and my 6 years old daughter tried to separate them and this is what happened. It just broke right in front of my eyes. Very cheap.
2 of my magnets showed up broken but it came with a paper saying they replace or refund ant broken magnets. I didn't care to get a refund because I needed to break mine anyways. Why? These are great for sticking things to your car. I used mine to hold my gas cap cover on to my car. I super glued the magnets on and when the gas cover closed it held incredibly tight. Only reason it got a 4 star is because 2 showed up broken and that could inconvenience someone.
These barely hold 2 pounds -- NOT the 18 pounds claimed. Disappointed.
A couple magnets were cracked or deformed, but I didn't need all of them for my project. Very strong as you would expect.
these are very strong magnets, they do the job
Very strong, no damage, wonderfully packed! They came stacked with plastic spacers, and the whole thing was completely surrounded in thick foam so they would not be attracted to anything else in the box. Very pleased.
Well, they are strong magnets and they look just like the picture. None of mine were broken. They are securely holding a whiteboard to my freezer door. I'm satisfied.
Awesome magnets. very powerful.
for all the people complaining about them being fragile. before you buy something learn what it is u are buying. do you know what they are made of?? not steel or diamond sorry kids. and they are 2.5 mm thick with 20 lbs of force what do u think is gonna happen retards.
These magnets are so strong, that I am having trouble using them. I can't get them apart and when they say use will caution, take heed.
Doesn't work at all, I set it to 82 while using the cool setting and it turns on while its 80.
These magnets are extremely powerful! I would recommend extreme care when handling the magnets as they are so powerful that I have deemed them more dangerous than knives when it comes to handling, as a wrong move could result in a serious injury.
FxxK broke when it arrived, WTF.