LOVIMAG Neodymium Bar Magnets, 20x5x2mm 60Pcs Small Strong Rare Earth Magnets, Strong Rectangular Magnetic Bar, Mini Powerful Magnets for Crafts, Fridge, Science, Office and Tool Storage

POWERFUL magnets! At a good Price!

Like most rare metal magnets these babies are strong and brittle. Not for the average young players. After few minutes of handling and a few accidental oops! That's too close, you find yourself with cracked/broken pieces. I believe the coating is for a smooth and pretty finish, not a protection of the magnets. It would have to be much thicker to prevent cracking on impact from each other, similar to glass. At first, I thought these aren't as strong as stated but after handling I realized it was not the strength but the distance I was misjudging. These babies strengths are an exponent of distance. At the surface, they have an extremely dense magnetic field. As distance increases strength decreases. As the size of the magnet is small the distance of the field is small. All things relative, after a better understanding of the basic characteristics of the material used, I have a greater respect for the making of these. Excellent Product and great price.

I ordered the 20x5x2 and the 10x5x2 magnets, and when they arrived I realized they were pretty weak. I think it's partly due to them being about 8-12.5% smaller in each dimension than advertised. Mine ended up being 19x4.6x1.75It's not a problem because my application can stack the magnets to increase strength, but I am annoyed that these aren't 2mm +/- 0.2mm, they're 2mm -0.2mm. I will probably order from someone else next time.Update: After ordering similar magnets off a certain competitor site, I am even more disappointed by the size accuracy and the strength of these magnets. I will be avoiding amazon magnets for the foreseeable future.

So I have those screen doors you just tack up to keep the bugs out with a magnetic closure. Thing is those magnets just are great. They have a few great magnets and these long weak magnets making up the closure. The screens in good shape but since the magnets are lacking I thought I would just update those instead of everything. Enter these babies.Since the fabric is plastic I crazy glued the little guys on one side and attached, let them attach themselves, to the glued magnet. This allowed me to know which side needs to be glued down. A few minutes later and everything is glued and my screen is closing like a champ. Dogs can still walk/run through no problem but now it closes with that oh so good clacking sounds you heard on the as seen on TV version. I even used it on the curtain I put up between the kitchen and living room. With the backdoor always open and my cooking in the kitchen it creates a lot of heat. The curtain goes up and automatically the living room is decidedly cooler. The magnets keeping it closed makes sure the heat stops there. For that I bought a photo backdrop curtain since those are essentially black out curtains but much larger and cheaper.These magnets stick together so well it's kind of hard to take them apart, especially if you want only 1. That just means they will work well for what you need, especially if you're using them to stick 2 together for something.Would buy again and hopefully next time I won't be missing one. Yeah, I sorted the magnets by 20 and at the end I was missing a single tiny magnet but I think when you get 150 there would be a time or 2 when one goes missing.

They are not kidding when they say these are STRONG. I pinched my fingers when trying to pull these apart to put on the fridge, and wow! These definitely could hold up a nice stack of papers with no issues.Pros:1) these are small and yet powerful. These are the perfect fridge magnets as they can hold up all your kid's artwork, but they are not ginormous and clunky. they have a nice, compact bar design that works. I love this.2) silver is a great color, and these don't scratch easily. I love that these can be bumped up against each other, and they don't have gouges taken out of them, etc. Yes, I definitely rubbed them against each other a couple of times when getting them out of the box and pulled apart. No damage to anything.3) I suspect these will last for a bit. I am not hugely concerned these will lose their magnetic power. This is primarily due to the material they are made from; but also because it seems to be higher quality upon visual inspection, and initial experience.Cons:1) I would not let kids use these unless you are into seeing your kids have blood blisters on their fingers, or screaming like mad when they pinch their fingers for the millionth time. I know at some point my daughter will get pinched by these. I hope she learns the first time because it HURTS when you get pinched by these! Man, what a bummer it is that these have to be kept out of reach of children, or at least should be if you have that kid who has to try everything.All in all great magnets, but they definitely are for adult use only!

Magnets are strong. However, my fault for not paying attention, they are extremely small. Don’t know what use most of the mixed pack could be.

These magnets are very strong for their size and work great for cabinets and for latches and all sorts of repairs.

Neodymium magnets are known for their exceptional strength to size ratio but I am not sure what went wrong here. Unfortunately for me the return window had closed long before I was to use them for the projects that they were intended for ,or I would have immediately returned them. I had assumed that since they were listed as Neodymium,surely they would be super strong as such---NOPE. They were not much stronger than many standard magnets of similar size. I stuck them in my JIC junk drawer and maybe they will be handy for some other use one day. As a result of the inferior quality of this set of magnets, I was forced to buy some actual Neodymium magnets locally that fit my needs for strength and size. Too bad these weren't up to the task ; they were a good deal for the amount price wise.