10 PCS Refrigerator Magnets 3/8" x3/8" Cylinder Magnets Small Permanent Rare Earth Magnets Neodymium Magnet for Multi-Use Fridge Whiteboard DIY Scientific Craft Office Magnets, 10x10mm

Size No fragility regarding the ones I purchased. They are well packaged. They are not the strongest ones but very acceptable for their intended purpose, as they are strong and adhere well to. Easy to remove from their package. I consider them a good value for the money for they intended end use.

Very nice strong magnets. Just be very careful because they'll break very easily.

These are excellent magnets! But they are not 3/8" as advertised. The magnets I received are 10mm.

The magnets are really strong but not very durable. I had two I was putting together. One slipped from my hand and hit the other. It sparked and cracked. I used it to make a Gauss rifle demo and after just a few times all the magnets were dented and or chipped.

This was a perfect replacement for a missing magnet on a brio tow truck.

True to size as measured by my vernier calipers. I don't have a way to measure the strength, but it is like my other strong neodymium magnets (regardless of size), and not like the weak ones. A little hard to separate, due to strength, but easier than flat magnets of this power. Comes in a clear plastic case which is really handy for storage. Will still stick to the side of the metal cabinet through the case (keep it high out of reach of kids).

Leaving a star off because the coating on the outside seems to come off comically easy, but otherwise they are quite strong magnets. I drilled out an oil drain plug for a motorcycle to add this in as a bit of insurance. I use the others around the garage to fish out screws. They are quite strong so be careful

Strong magnets worked perfect for my project