Round Countersunk Disc Magnets 3/8x1/8 inch (10x3mm) N52 – 18 Matched N/S Pairs with #4 Screw Hole – Strong Rare Earth Neodymium Magnetic Fasteners for Crafts, Cabinet Closures, Workshop (36 Pack)

Good quality, exactly what I needed. I needed these for some "quick-connect" PTFE tube connections, so the matched sets (allowing the countersinks on two magnets to oppose direction) is really helpful. Good quality, good magnetic force, and well-packaged.

Overall, I like these magnets. They work well holding up a steel wall decoration outside our house. However, be aware they are pretty fragile. I broke two of them. One broke when it got close to another and they clicked together, shattering one of them. The other broke when screwing it onto the wall.

Small strong magnets. My husband bought these for a project he's working on in our garage. He's used them with cabinet doors and misc items.

These are stronger than i expected. Highly recommend if your using it for on road rc cars

Magnets are not 10mm, but rather 9.5mm. A typical countersunk M3 screw does not sit fully flush in these magnets either, rendering them useless for my application. If you want good magnets, amazon is not the place.

The good: - They are pretty strong magnets! The bad: - In the set that was sent to me, ALL of the magnets had the same polarity, so, if you're hoping to use screws to attach them to whatever your project is and expect both pieces to snap in place, they will actually repel, which is the exact opposite of what you'd think they will do... Although, if your project is something that requires repulsion, say, a floating device of sorts, or you want to use them to attract metal, then this is the magnet for you. - One of the magnets arrived broken, and they do seem somewhat fragile.

These were way better than I was expecting. I've been using this type of magnet for years and these are far and away the best I've ever gotten. Will be getting these again!

Not as strong as I hoped for probably due to the hole in them.