Realth Neodymium Ring Magnets Dia. 0.75''×0.12'' - 0.31'' Hole, Disc Magnets with Hole, Magnet Rings for Research Industrial Purposes Educational, 10 Pack(MT1910)

Do not let these little magnets snap together or to whatever you are using them for. They will break. But, that is a standard expectation with any neodymium magnet. These are perfect for the price and do the job well.

These are pretty strong, but not crazy strong. I've bought others that were better, as far as strength goes. Disregard the reviews that say they break easy. Anyone that know this type of magnet knows they are brittle and need to handled accordingly and that they are prone to breaking if allowed to slam together or against an attractive material. They work well enough for experimentation.

So strong it can be hard to separate them.

This work well for general purpose magnets. They are definitely not as strong as the N52 magnets I have bought. I have them release when other haven't. Use case is this magnet and an N52 magnet separated by medium weight cloth. I will look for N52 magnets with a hole.

Very strong magnets. Just what we needed.

I really like these little magnets, they’re strong and the larger pack (as opposed to the typical 1 to 4 piece pack) means that I can use these on more things. At first, I got these magnets to use with a fake license plate that I have for my car, as I am a content creator and I make a lot of car related content. Because I don’t want to keep taking off my license plates all the time, I use these types of magnets to hold my fake license plate over the real one. Additionally, I can use these to make magnets out of photo frames or stickers that I like, by placing an adhesive to bond these magnets with whatever I want to make into a magnet. Or I can also use these to hold pictures and pieces of mail on my fridge when needed. There are so many options! I highly recommend this product, as none of them have broken so far in the month that I have had them. I have ordered multiple sets of these types of magnets (from other manufacturers) and all of them have broken or cracked after multiple uses. I haven’t had that issue with this set, so I believe these are high quality and I recommend them.

These magnets are very strong and do a great job at holding however be careful letting them attach to one another too quickly as this often breaks magnets, I have already lost 5 of 20 ordered. There are other versions of this magnet with backing or protection that may better suit your need.

These are super strong and seem well made (so far). I find that these type of magnets tend to chip or crack over time but I'm hoping these will last longer than others. I included a video of the stack "grabbing" a lone magnet from around 5" or so away. I ordered the 0.74" size and they measure .747 (or 18.98mm) in width. They're a little hard to get apart once they're together but any good magnet should be. Definitely handy to have around the house or shop for various projects or experiments.