6 Pieces Neodymium Magnets 25 kg Strength 28 x 5 mm with Capsule, Pot Disc Magnet with Screws

Very strong magnets. it took some effort to separate the pieces. Change the side of the disk if you find these are not strong enogh

I like these. They work. However, I broke 2 of these just by screwing them too tight. They crack VERY easily. I've now fixed them using nyloc nuts so that I don't need to bolt them tight. And where they are fixed into rivnuts, I've used Loctite on the threads. To tighten the screws/bolts so that the fixings don't come lose, use other means of preventing the bolts coming lose other than applying a normally tightened fixing. (I am a mechanic, so know how much force is needed and how to not overtighten.) I had to buy another box of these to after 2 of the magnets cracked.

it served the function for me, as i had to use this as a magnetic door catcher in a project. Please note, this attracts fast, so need to consider that