N52, 1/2" L x 1/2" W x 1/2" H Square Magnets - 12Pack, Block Rare Earth Magnet, Neodymium Building Magnet 0.5 x 0.5 x 0.5 inch Cube for Office, Home, Fridge Magnets for Refrigerator,Craft

Amazingly powerful. If you get careless they can pinch hard enough to draw blood. I bought these to use as fasteners for a heavyweight metal grill and they work almost too well(!) Highly recommended for anyone wanting (almost scary) strong magnets. Serious fingertip strength is needed to separate these from each other, as well as care & caution.

Strong

Dangerously strong, very fun!

Very strong, almost impossible to get apart. Could be dangerous in some situations and around children.

Great Magnets

The coating on these is very brittle and chips off when two collide. They are very, very strong magnets so it’s inevitable that they will collide sometimes. I bought them think they’d be good for game play, but they are too strong for that.

Insane strength for their size! To make my day fun and surprising, I like to put neodymium magnets in my pockets, forget about them, and head off to work!

Main issue is the listing and photos call for 12 magnets, but only 9 were in the box. Besides that everything else is great. Magnet size is correct, strength seems correct, and nothing broken in shipping. $30 for 12 seemed like a decent deal but $30 for 9 would’ve made me look elsewhere.