DIYMAG 1" キューブネオジム磁石、最強 1inチ キューブ希土類磁石 - 2 グレードN52、パック

right out of the package, I caught my finger between the magnets, and BOY DID IT HURT! but I guess that's what happens when you fool around with strong magnets. besides that, they work wonderfully!

These are awesome. The only reason I didn't give it five stars is because one was a little chipped, and they were almost impossible to get apart (no directions on the best way to do so). I can see why they do send them this way though (together with a buffer between), because had they separated them and not made it obvious to consumers that these are EXTREMELY strong with their magnetic pull, people would get their skin and fingers pinched and smashed when they put them anywhere close to each other, or break the magnets as they come crashing together for the first time. I bought the two pack so my nephew could have one, and my daughter could have the other. We made our own magnetic slime with iron oxide powder. They love love love it.

These 2 magnets have a very strong attraction to each other. Had one in each hand and they pulled out my hands which were about 6 inches apart. They snapped together and broke. The outer coating is very thin. Not worth mailing them back for a refund. Beware of the manufacturer/seller.

I knew I was buying strong magnets. I bought the larger ones thinking they'd be safer because I didn't want to buy magnets small enough that a pet or child could swallow them. I didn't read the reviews because they're magnets, what's there to know. Silly, silly me. These are packaged with a small plastic ring between them. In theory to make them easier to separate. This did not work for us. I was having a hard time getting them apart initially & brought them to my son, just to show him how strong they were before I tried again. Well, he couldn't help but try & while he technically got them apart, it was only for a second before they slapped closed again without the metal ring. I took them to a table edge & tried holding the top one tight & sliding the bottom straight down (as pictured, though, I hadn't looked at the picture. Could have used directions In the package, not just on the website). This was working, but suddenly it slipped & they slammed back together, with some of my skin stuck between the two. I managed to rip it off my skin, losing a minimum of skin in the process (but some). Tried again & got them apart. The decision was made that we'd never keep them anywhere near each other. One was set on the counter while I was holding the other a good, 8-10inches away. I moved the magnet I was holding to the side, and the other one jumped of the counter & slammed back into it's twin so hard there was a huge spark & an edge broke off one of them. They're separated again. One is on the side of the fridge. The other is in it's original box, in a closet, in another room. I very nearly threw one away. Just to avoid someone not realizing & putting them together again. They're exactly what they promise to be.

"Super Strong" hardly begins to describe how strong these are! I lost a pair of strong 1", black neodymium magnets I purchased half a dozen years ago - these are at least several times stronger. Please don't buy these for a youngster's toy - read some of the negative reviews first. These are so strong they can be quite dangerous. I'm a grown man, and though the two magnets arrived with a thin plastic washer between them, I could barely get the washer out. There are two ways to separate the two cubes; put one on a tabletop and push/slide the other one down. Alternately, I put one in a padded jaw vise and leveraged the other sideways and off with a padded jaw adjustable wrench. These will not be used to confirm drywall screw location under tile etc.