CMS MAGNETICS1-Inch Neodymium Cube Magnet | Strong NdFeB Rare Earth Magnet with Triple Ni-Cu-Ni Coating | Durable & Powerful for Industrial, DIY & Educational Use, Safe Keeper Included

It definitely is a POWERFUL magnet. I am glad that I order the magnet with the storage box it (the magnet) needs to be in one for its protection and any metal around. It is like dealing with a small child who doesn't want to take a nap, or go to bed when you're trying to get it back in the box. I had a harder time getting back in the box than getting it out, and use the plastic holders to keep it in the box, it will pop out and adhere to the metal cover.I have a much bigger magnet that is also powerful but I needed a smaller magnet to keep in my car to reset the fuel, and (now the) coolant gauge when it goes under the needle. It always happens when the battery gets weak because I haven't driven it for a time or maybe I didn't close or shut something all the way, or when it is happening more often it is time to get a new battery. I have found that you have to have a powerful enough magnet to move the needle(s) back. Sure you can take the dashboard apart and reset it that way, but it will only hold until the next time. Unfortunately I do not have the patience, and usually the time to do this. Problem solved.

I ordered two of these cubes and they came wrapped in layers of bubble wrap with plastic washers to protect the poles. The packing list included a separate page of warnings. Do not take these warnings lightly. The magnetic field around these things is over a foot. When they become closer than that, they can and will slam together with an unbelievably violent force.My two cubes became stuck together, I couldn't believe how much force the two combined created. I managed to drive a wedge between the two and got them separated, but didn't move them far enough apart and they quickly slammed back together. Of course they chipped, but not so much that they weren't still usable for my purposes.The warnings stated neodymiums are brittle, and they are, just don't underestimate the magnetic field these large N52's produce. They are a lot of fun to work with, but they do have the potential to be dangerous.

This little cube magnet is awesome. I bought it to use to hold my paperclips. I kept seeing magnet sculptures to play with on your desk, so I thought I'd find a cute magnet and make a sculpture with my paperclips-- It's perfect. I dropped a bunch of paperclips from a few inches above and they all landed on the magnet (these were extra large coated colored paperclips). You can play with them, pull one off to use, or ...some other idea you have for a magnet. It's the perfect amount of strong, has a very nice finish (in the picture it looks like some sides may be brushed, but they are all shiny in real life). I'm sure there are lots of other uses, that's just what I wanted this one for.

After having just taken an advanced physics course, I was excited to experiment with magnetism and these seemed like the perfect magnets for what I was wanting to do. These seemed to be such a reasonable price, I figured I'd order two. Because, you know, two is always better than one, and if you're ordering two, I have some very useful advice for you:DO NOT ORDER THEM TOGETHER!Or, if you do order them together, don't be stupid, and use common sense (unlike me) and DO NOT open them at the same time, right next to each other... sigh.I missed all the warning signs that were trying to tell me it was a bad idea. Truly. The first was when I noticed the two containers (very nice containers for how much they cost) were sticking together. No, there wasn't tape or glue keeping them together, it was the magnets. That's how strong they are. That was the first sign warning me not to open them at the same time. The second came after I opened the first one. I pulled out the magnet, which came out unwillingly. He was ever-so attracted to the metallic container from which he arrived inside of. But after a good talking to, he decided to come out. That's when he noticed the second container, and practically (but not literally) jumped out of my hands and onto the other container. I thought to myself "wow, these things are pretty powerful", which is an understatement. I had two warning signs staring me in the eyes telling me "DO NOT OPEN THAT OTHER CONTAINER!", but, like a kid in a candy store, or an adult on Amazon, I had no self-control and was oblivious to these warning signs. I set the first magnet down about 3 feet away from anything that it was attracted to, and was ready to open the second container. I picked it up, opened the top, and began to wrestle with the magnet inside to try and get it out of the container. As I was lifting it out of the container, I thought to myself "I should probably keep these magnets separ-" and before I could finish that thought, a shiny silver object came flying across my face and quite literally knocked the magnet out of my hands and launched it across the room. When the two magnets collided, one of them completely shattered (the material they're made out of is soft/fragile). Even though it had shattered, it was all still being held together by the insane force of magnetism it wielded. Now, I had one solid, in-tact cubic magnet stuck to one not-so-in-tact somewhat cubic magnet. I figured I'd just pull them apart. HA! Nope! Not even close. When they say these things take over 90 pound of force to separate, they aren't kidding. After several YouTube videos and web-surfing for hours, I was almost ready to decide that I was okay having a single rectangular magnet, but I finally figured out how I was going to separate these. Almost everything I read suggested using a table edge to separate them. However, getting them separate (but still connected at the corners) proved to be incredibly dangerous. I could hold them in this position, but the second I tried to move them away from the table to completely separate them they would smash back together, nearly trapping my phalanges forever. So, when I got them in that position, I decided to stick a thick blanket between them and let them clamp down on it so that the blanket would remain between them. It worked, and I was able to slide them toward the center of the blanket (while also ruining the blanket), and wrapped one of the magnets completely with the remainder of the blanket. I then tried the table trick again. I put the exposed magnet on the table, and the (literally) blanketed magnet off the edge. I separated them so they were only connected at the corners, and was ready to give it my all. One hand was holding down the magnet on the table with every ounce of strength I had left in that arm, and the other had a firm grab on the end of the blanket. With all the effort I could muster up, and nearly tearing my pectorals, I forced the two magnets apart successfully! I immediately threw the open magnet away at one of my couches and sprinted into the other room with the blanketed magnet. To this day those magnets have yet to be in the same room at the same time.