WOW!!! Got a tell ya, these are no joke. I had these magnets not more than 5 miniutes, one in one hand and one in the other, about 5" apart! This is what happened! I cut my finger trying to stop them from connecting. Be careful. I have never seen magnets this powerful. They are extremely brittle and will shatter if they hit a metal object or another magnet as you can see. Extremely strong!! I give them 5 stars because of there strength!

Excellent product. Very strong magnets as described. I used them to put one in my cell phone case (iPhone 6 plus with an Otterbox case) and put one on the cellphone holder in my truck. Now the phone stays on the holder with just the magnets and it is easy to remove and replace. The magnet is strong enough that it will hold my phone on a vertical metal surface.

Love to play with these magnets I use them for finger exersices to try and take them apart. They are that stong. Just use your fingers and you will see. I got some iron to mess around with these too allot of fun. I use the so many projects. You would be very suprised when you need a super strong magnet as a tool comes in handy for so much. And I alway's these they may cost more but are worth it because of the type they are.