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

Solid little magnets with big power! The adjective tape fixes to one part (in my case, a metal sign - which also would have been just as effective without the adhesive tape as it was attaching to metal) and the other to hidden screws so the sign could be attached and removed easily. Very easy to install (although they are so powerful you have to keep them well apart until ready!) and they are nice and thin at 3mm. Great value for money and very versatile!

We needed some magnets that definitely stuck to steel through a couple of layers of polythene insulation. The added problem was that there was only a narrow gap for us to put the magnets on. After careful use of two layers of aluminium tape for each of the 16 magnets in this pack, our problem was resolved. Unlike so many magnets we have used in the past which can be brittle if dropped, these are smooth on all sides, so don't look as if they will flake when coming sharply into contact with other magnetic items; I think they will be solid enough to last. They are a perfect size for what we need, and we will probably be ordering more, as they seem a bargain! (Basically, the insulated windscreen cover was not as snug a fit as we wanted, and it let in too much light. Careful placing of these around the edges quickly sorted it.) They are small enough so as not to get stuck on every steel item nearby, but still work extremely well.

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.

Good strong magnets and done the job to provide extra magnetic strength for holding a bifold door back during higher winds but warm weather. Only thing I would say, is measure the screw off door magnets and then these magnets should fit inside. I have them on the outside but didn't realise they unscrewed off the door. Either way product is great!

These are just as described - strong magnets - and you need to be careful when seperating them. They come with thin foam between each one, but when removing them from the packaging they can clash against each other. Two of mine sparked and one broke when they came together too forcefully.

Very strong magnets, in fact so strong the fastening strips fail to hold them in place. Will have to find much better strips.

Very strong

Very strong-using to close sliding wardrobe doors. Are perfect for the job!!

Utilisés pour plaquer des planches de CP 3mm sur un nid d'abeille, en vue de découpe au laser. Pas trop épais et super efficace pour le maintien des planches. A recommander

Magneten zijn sterk

aimants puissants

TL;DR: Sehr starke Neodym-Magnete mit hoher Haltekraft. Alle Magnete kamen unbeschädigt an, der vormontierte Klebestreifen hält gut. Für den Preis ein wirklich gutes Set – für meine Anwendung fast schon stärker als nötig. Ich habe die Magnete für ein 3D-Druck-Projekt gekauft. In meine gedruckten Bauteile habe ich passende Aussparungen konstruiert, in die die Magnete eingesetzt bzw. eingeklebt werden. Die angegebenen Maße von 60 × 10 × 3 mm stimmen und passen sehr gut für solche Anwendungen. Positiv aufgefallen ist mir direkt beim Auspacken, dass alle 16 Magnete unbeschädigt angekommen sind. Bei Neodym-Magneten habe ich schon häufiger erlebt, dass einzelne beim Transport brechen oder kleine Absplitterungen haben, da das Material relativ spröde ist. In diesem Set war jedoch alles sauber verarbeitet und vollständig. Die Magnetkraft ist wirklich beeindruckend. Die Magnete ziehen sich sehr stark an und lassen sich nur mit etwas Kraft wieder voneinander lösen. Für meine Anwendung sind sie fast schon stärker als notwendig, aber das ist natürlich eher ein Vorteil – lieber zu stark als zu schwach. Praktisch ist auch der bereits aufgebrachte doppelseitige Klebestreifen. Dadurch lassen sich die Magnete schnell und unkompliziert fixieren, ohne sofort zusätzlichen Kleber verwenden zu müssen. In Kombination mit passgenauen Aussparungen im 3D-Druckteil funktioniert das sehr gut. Insgesamt bin ich von dem Set positiv überrascht. Für den Preis bekommt man sehr starke Neodym-Magnete, sauber verarbeitet und mit einem praktischen Klebestreifen. Für Bastelprojekte, 3D-Druck-Anwendungen oder allgemeine Befestigungen meiner Meinung nach eine klare Empfehlung.

Tiens bien dans le temps