Neosmuk NF3235 Magnets, Heavy Duty Powerful Neodymium Rectangle Rare Earth Magnets with Backing Adhesive Tape, Great for Fridge,DIY,Building,Scientific,Craft,and Office,Silvery White, Pack of 6 (8)

Be very careful with these magnets folks. They are stronger than any magnet I have ever seen and are very brittle. When they break, the pieces can be razor sharp. They are very strong. Recommend not getting them close to electronics.

Worked perfectly to secure a barn style door in the closed position. I read the reviews about being careful not to hold the magnets too close to each other...and still, I did this unintentionally. Separated one of them a few inches from the remaining stack, they flew together and shattered in to small sharp pieces in a clump. I was able to remove them from the unbroken magnets. Not the magnets, nor manufacturers fault. ..just a warning to be careful.

So far so good but I want to return after I have used them a bit more to see if they chip or have trouble in a month so I'll update the review soon. Let me tell ya though, these are WICKED STRONG magnets and have some weight to them! I highly doubt that I am going to have any issues with chipping or whatnot but I'll update soon!

I wanted to mount some magnets on my medicine cabinet doors to hold small toiletry tools such as nail clippers, tweezers, grooming scissors, etc. These did the trick and are very strong magnets for their size. You have to be careful when handling these magnets. They are brittle and break easily if dropped or smack into each other as magnets do. They come stacked in the package so you have to slide & twist them away from each other when separating or they will crack and/or break. They use 3M adhesive tape for mounting and if mounting side-by-side, keep their polarity in mind when doing so. You'll want them to attract not repel.

These magnets are VERY strong. Just be aware that they will break if dropped on a hard surface.

I used these magnets to hold a panel in place, behind which I can access the power supply for a string of LEDs. They are very powerful, but not so powerful that I can't remove the panel. They work well for the task. I attached them to wood surfaces with a bit of JB Weld epoxy.

Modifying a 3 phase electric motor to turn it into an alternator!!! 😎

When they touched each other with the littlest of force one broke in half like a cracker and another cracked like a plate.