MIN CIStrong Rare Earth Neodymium Magnets with Hole, 40 Pcs Heavy Duty Round Ring Small Magnet for Crafts Cabinets Indoor Outdoor Home Workshop Warehouse Door Office Used with Screws

So strong hard to control and can slam back into each other breaking into sharp pieces.Also keep away from electronic devices like phones as they can wipe memory and disrupt speakers and more.I mounted these in alternating polarity on a 5 inch bolt (took almost two packs) to be used under mattress to dispel pain from injuries instead of pills. It's said to disrupt the pain signals in the body. And I find it does work.

Perfect for my needs

Good magnet. They are small but work well

Very strong magnet. Even though they're wrapped in foam padding and in a corrugated cardboard box, metal is still attracted to it. I don't doubt they could shatter, they slam together with considerable force. Use with care.

Have these on all my rc drift cars. They are the perfect strength. Not too strong so the body rips if you pulled it and not so weak so that the body dismounts from minor bumps on walls/rails.

These magnets have very low pulling power. Together they are strong, but take one out of the bunch and its very weak. They were perfect size and had the proper mounting hole. But i cant use them for my project. Also, one came broken in the box. Im not going to return them because i think my kids can have fun playing with them sonce i dont have to worry about them getting hurt like i would with real neo magnets. Overall im disappointed. Advertised as really strong but that is stretching the truth a bit, ok a whole lot. Still good for projects that dont require super strong magnets.

Very strong magnets

They’re extremely weak as a magnet magnets much smaller than these without the hole in the middle work much better. They’re also very brittle while you put the screw and you have to be very careful not to break the magnet and that is by using a regular screwdriver hand controlled Terrible item. Worthless