Wukong 30PCS Round Strong Neodymium Magnets, 15mm x 4mm, Silver, Perfect for Fridge, Crafts, Notice Board or Picture Magnet

Bought these for locating screws in the drywall. Really really strong magnets. They easily locate the screws and stick to them, helping to locate studs and avoid existing screws when drilling. You get a bunch of them so plenty to handle a full wall project. They come packed in a box with a very thick styrofoam insert, which is brilliant to store them without them sticking to everything. They are very strong so keep them well away from your wallet, electronics, etc. The only con is that they are prone to chipping. I've already got a few that have bits broken off, leaving a very sharp edge.

I wanted to do some holes in my living room ceiling (isn't everyone doing this theses days?) and read something about using these types of magnets for locating and being able to see where and which way the joists run.They arrived next day, were well packaged, very strong (from my limited experience of magnets) and look solid. I'm struggling to find fault with them. Hence the five-star review.Well, the good news is these magnets have proven very useful for this purpose. In fact they were ideal and stuck firmly to the ceiling.The bad news is I'm not Mr DIY and now not only have to make a mess of the living room but also the bedroom upstairs when pulling up the floorboards.But hey, everyone loves magnets.

The media could not be loaded.  These 15mm round magnets are I would say Medium strength, and as many reviewers said, quite brittle.I would say they're not well suited where you will be clacking things on and off them regularly, but if you sink them into something so you use the pull, but don't touch the magnet, they're great. Glue them in place with epoxy.

Having already used up my last batch of similar magnets, I bought the slightly thicker sized ones.These are slightly more powerful.Keep these away from children and pets, also pacemakers, credit cards, etc.I used mine by glueing (UHU in this case) these to a discreet part of double glazed UPVC window frames to hold window lock keys. The keys cannot be seen from outside but are very near to the window locks when required. I ensured that the keys were magnetic first.I have also used these to keep bedroom blackout curtains from allowing industrial lighting from filtering through any gaps. I use a magnet behind and one in front of the curtain.These are powerful enough to hold the average bunch of keys up on a board.

They are strong and do the job well.

These certainly appear to be N48 strength magnets. None were chipped when the pack arrived.Of course they do chip very easily, but that is to be expected of neodynium.No complaints, just what I was expecting.

As reasonably powerful magnets for general use, these are OK, but don't let the 4mm thickness think they're going to be super powerful - they are not. If you've ever bought good quality neodymium magnets before this will be very obvious. I have some 2mm by 15mm examples from a different supplier, yes they were more expensive, there were less of them but they are easily twice as powerful as these.Don't get me wrong these magnets aren't weak and they're likely to be fine for many general purpose applications, but don't let the description fool you into thinking you'll be getting more than you're paying for. Also these magnets are very brittle - given they are 4mm I was expecting them to be more robust than the more powerful 2mm magnets I already have, but in fact they seem to be more likely to break with two having already quite easily cracked.

They're magnets, so I don't have a lot to say. Suffice that I was not disappointed by the pulling power!

Non mi aspettavo fossero così potenti, le ho comprate per attaccarle a delle spille che avevo fatto per renderle calamite, mentre le preparavo dovevo tenerle distanti altrimenti si attaccavano con una potenza che davvero non mi aspettavo. Infatti stavo valutando di farci un gioco per i bimbi sfruttando la loro forza attrattiva e respingente, perché sono molto divertenti, sembrano vive!

Leuk geprijsd, snel bezorgd en degelijk verpakt.

Habe sie gekauft um ein Fliegengitter samt dem Holzrahmen an Metallleisten zu halten. Funktioniert sehr gut. Man sollte aufpassen das die nicht mit zu viel kraft aufeinander prallen oder auf einen harten Boden fallen, dann können sie splittern, aber das ist soweit ich weiß allgemein bei dieser Art von Magneten so und da kann man halt nichts machen. Ich habe sie bündig in den Holzrahmen versenkt und verklebt, und auch wenn sie mal einen halben Millimeter überstehen, sind die bisher beim abnehmen und dranhängen nicht beschädigt worden, auch wenn sie mit Schwung angezogen werden. Für meine Zwecke volle Punktzahl auf jeden Fall.

Très bon impeccable pour faire des manettes

Tenía dudas por las críticas de otros imanes, por el tema de que se rompían al caer al suelo o simplemente al chocar entre ellos, estos como son de 4 mm de grosor parece que no se van a romper fácilmente. evidentemente al ser de Neodimio se atraen con mucha fuerza, observad la foto de los imanes atraídos a través de mi dedo. relación calidad precio me han parecido lo mejor que he visto en Amazon y hay miles. De hecho, aunque tengo 30 lo más probable es que compre alguno más para unas cortinas que me dan el follón con el viento. Saludos