4 Pack Strong Magnet, 30 x 3 mm 8 KG Pull Super Strong Neodymium Disc Magnets, Magnet Strong with Double-Sided Adhesive, Powerful Permanent Rare Earth Magnets for Fridge, Building, Craft, Office,DIY

Excellent magnets, they are about the size of the batteries you put in various car alarm remote controllers, and are quite strong. I used one to hold a security camera to the ceiling and it does the job very well. I don’t think one could hold 8 KGs, but two together may be able to.

Good product. Very strong magnets for the size. Worked really well - used for stage props. Quick delivery also v good.

excellent magnet very strong good value for money

Very strong magnets for the size. The 4 were packed well to a point. Unfortunately I struggled to get them out of their bag. And as I did so, the magnets flew out of their individual foams, stuck themselves together so violently that 1 magnets chipped severely ans the chip flew and hit my face. Then they proved to be so strong my arthritic hands could not separate them and I needed help. (Even the friend who helped me was impressed with their strength). I wish they were packaged in a slightly larger bag to help make it easier to get at them. Defo value for money. Will defo hold up fairly heavy jars by their lids to bottom of a high shelf. I recommend but please take care when opening them. Don't get injured like me.

Although one of them broke that is down to myself and not the product. Perfect magnets, they’re definitely strong. The magnets are strong enough to go through certain materials incase you’re doing diy and want it to be seamless

I’ve previously ordered other brands of magnets which turned out to be a little disappointing strength wise, but not these! As advertised, these are very powerful so care is needed. I learned the hard way. When I first unboxed these they suddenly all snapped together producing a loud crack and a spark and one of the magnets instantly shattered, so take care when unboxing and make sure not to place them too close together! Very difficult to separate and need to be treated with care as they are quite brittle. They look solid due to the metal plate coating but don’t be fooled. Anyhow, I stuck a few of these to the wall of my shed and can confirm that a ‘single’ magnet is strong enough to secure a tool (see my photos). Size wise these magnets are about the same size as a 10p coin. Would I order them again? I would say yes, but I would be more cautious and treat them more carefully in future.

great strong magnets.

Good thickness havent tried breaking but are good thickness easy to apply where you want them good sizeand good stickyness.