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

"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.

Strong and compacted. Worked perfect for finding metal framing in the wall

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.

Took magnets apart and they immediately went back together and shattered. Very weak material. They slammed back together with less than an inch gap in between them.

I bought these magnets for my 7 year old grandson to use in his magnetic science experiments. These two magnets are pretty much 1 inch cubes, which are similar in size to some Minecraft style blocks, and I thought they would be OK to use with them in addition to his experiments. The package arrived overnight with my grandsons name on it, along with other magnetic products for him to use. He was so excited to see the items I had purchased for him and especially these cubes. Here are the issues with them. These are definitely as advertised, and the strongest magnets I have ever had. These cubes are so strong that it took me over 10 minutes trying to figure out how to get them apart, or if they even came apart Once getting them apart, and the strength I had to use, I was very concerned that they could hurt his fingers if they got caught between them, seriously. After I finally pried them apart, I was showing him how strong they were by placing the Styrofoam they came in between the two cubes and how they still stick together through the Styrofoam. I was reluctant to give them to him to play with, but he was very persistent. I gave him one cube to play with and see how strong they were, but he wanted both cubes. As soon as I gave him both cubes, within seconds, their magnetic attraction was so strong that it yanked the second one out of his hand and they snapped together with such force that the corner of one magnet shattered into very sharp shards. OMG. These are so dangerous and are not toys or for use in science experiments like the description says. See the attached pictures of what happened. DO NOT PURCHASE THESE FOR CHILDREN.