Magnetpro Waterproof and Anti-Rust Strong Neodymium Magnets with Protective Layer, Size 13mm 6 Colours, Super Magnets Especially Suitable for Glass Magnetic Board

Very small but very powerful.The colours are not very strong or vibrant.

Well, this is going to be a strange review! I’ve given these magnets five stars but I wonder whether I should have given them just one star - or maybe no stars at all. Or perhaps I just simply shouldn’t of bothered to have written any sort of review. Let me explain. A couple of days ago I bought a packet of eight large black magnets from Sainsbury’s. They were, as I said, large, black... and useless. They were about the diameter of a two pence piece and I intended to use them as reminder "stickers" for a magnetic whiteboard so that when I saw a magnet stuck to the board I would remember that I needed to look at my notebook. Pointless, as it turned out, because the magnets were so weak they simply dropped off at the first opportunity. Then I saw these. Brightly coloured and advertised as being very strong. Very, VERY strong as it turns out - in fact so strong that I’m rather worried that they may have messed up both my rather expensive electronic wristwatch and my very expensive iPhone! They are however, much MUCH smaller than I anticipated - only 12 mm in diameter. They came in a very high quality plastic container, much larger than was necessary to contain them, the only purpose of which, as far as I can tell, is to play a game of "Put the magnets into their box in such a way as to get them NOT to instantly stick together in a tube-like shape before ever actually completing the game"! (Turns out that this is completely impossible to do, by the way.)All of this extraneous packaging was itself enclosed in one of Amazon's famously oversized cardboard envelopes which was about four times too large for the item it contained. Having driven to my local Post office to collect this item (my own choice, admittedly) I don’t think I have done much to conserve the planet's resources by purchasing this item, and of course I now have a set of totally useless Sainsbury’s magnets which I’m now going to have to dispose of at the local dump.So, if you want some tiny, hugely environmentally unfriendly, over-packaged, yet powerful and highly effective magnets, look no further![And by the way - there is NO WAY that the magnets can be lined up in the way that the promotional photograph of this product suggests. The magnets are so strong that if you try to place them in this format, they will instantly align themselves into the tube shape that I described earlier in this review. And DON'T allow the magnets to come into contact with your delicate electronic watch or smartphone!]

I bought these to hold my shower curtain in place, so was looking for something waterproof that would work through a glass shower screen. They work really well - they seem to be fully waterproof and are strong enough to hold the shower curtain from each side of the glass screen. They are quite small (as described), so it would have been nice to have something a bit bigger for the price.

No scratching of surfaces, and no forming of rust like other Magnets.

Excellent items. I use them to hold down canvas of diamond paintings onto a light pad. They work well

These work as magnets but they are so so small that they are hard to work with . I found them too small personally - so smaller than my little finger nail .

My Grandson loves them he is learning about magnets,It's a shame they don't make some a little bigger.

The media could not be loaded.  Pretty powerful and rather tiny but a lot better than the plain metal ones because they have a plastic coating and don’t smash to pieces when they come together. Strong enough to hold other objects to themselves. I recommend them for fridge magnets and school room magnets that are powerful but not so powerful that they pose any danger to school children. Teachers will love them.