CMS Magnetics 1-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

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.

I had a security tag still on my clothes aftershopping and saw mags can take them off and it did’

Yet another pair of extremely powerful Magnets. They come packed in bubble wrap with nothing but a plastic divider separating the two of them, and can easily become stuck together. Separating Neodymium Magnets can be difficult and dangerous. When they snap together it's quite a violent collision that not only causes them to explode, but also creates a sizeable spark. I always recommend gloves and safety glasses. As with all Neodymium Magnets, if you're just starting out with this kind of Magnet I recommend a lower power rating. Otherwise enjoy.

I have a 1998 Oldsmobile. All the gauges are analog. The battery died and stayed dead for quite a long time. When I got around to putting in a new battery, I saw that the fuel gauge needle had spun all the way around and was now pointing straight down. When I put fuel in the tank, the needle went up until it hit that pin that sits at the "E". While talking at a mechanic friend, he said that a magnet would fix this. ?!? really?So I grabbed all the magnets I owned and tried it. None were strong enough to move the needle very far. But I did see that they *DID* move the needle. So, I ordered this one. I needed a super strong magnet that I could hold in one hand and this fit the bill perfectly.I love how it comes packaged...suspended in the tin in a foam cage. Necessary because once this thing latches onto metal, it's not easy to get it off of the metal (I lost a super strong magnet because a truck drove too close to my garage one day and the magnet went flying like in cartoons...I had to sign a waiver to purchase that thing....) Anyway. I put this magnet near the needle and it moved quite a bit! I waved the magnet back and forth and was able to get the needle to swing back into position. Yay! Magnetism FTW!

It sticks to things. Very strongly.I actually was a tad underwhelmed at the force, but DO NOT think it isn't extremely strong. I have this and the 1.26" sphere magnet, and could not separate them from opposite sides of a .1" divider without sliding them apart (your fingers will slip before it gives). This magnet has a "sphere of visible influence" of at least 9" radius. The pull force against my fridge door is probably 25 pounds; against the sphere magnet, probably 100 or more. If I hold one in each fist so that they repel, it is not possible to bring my fists stably closer than 1" from one another. Put one on each side of your hand, and it feels like someone is stepping on it.If you put it in its package and close the lid, the package will jump and seat itself inside the lid from about a centimeter away.For safety, keep it at least 18" away from anything metal if it's unguarded, and double that from other magnets. If it slams into another Neodymium magnet, something is going to shatter and send molten sparks flying. (Luckily I haven't had that happen yet :) )The coating was not perfect, but very close.TL;DR: safe for responsible adults. Probably the biggest magnet that you can safely handle--with care, of course!If given to children, these will create blood blisters and could possibly draw blood or break fingers. Caveat emptor.Update: Ouch! Yep. Slammed my fingernail in a moment of absentminded carrying. No blood but it was only a glancing blow. I reaffirm the previous comment: don't let children play with these.The magnet slightly cracked but did not shatter, in my case. Got lucky. :) They have plated it really well. If it breaks more I'll cook the pieces at 350F (demagnetizes them) and throw them away: large fragments of magnetic metal would be rather dangerous to discard. Will update if needed.