DIYMAG 25 Pack Neodymium Bar Magnets, Powerful Rare Earth Magnets - Industrial Strength NdFeB Magnet Set for Fridge DIY Crafts - 60 x 10 x 3 mm

Plan project wisely first. First off, quick delivery, great seller. I may be a little harsh on the review but mainly due for my issues durring use and the seller has a better but more expensive option. Con1- 3m tape will not adhear on felt or fabric for very long mounted on the side of an object. Even with pressure for 1min and left to dry for around 24hrs. The magnet will slide/pull off if shear weight/weight is applied. Using glue with the 3m to try to re-mount did not work since the glue would not cure or hold well on the 3m tape. Like I said, did not work well for my use but the tape method could work on a clean, flat surface and possibly on the side of a flat, clean, non fabric surface. Wear clean gloves when applying the tape to magnet or to surface. Dirt and oils will degrade the glue and will not set or stay in place, so make sure your tape is prefectly lined up with the magnet when applying and applying to surface. Con2- even though it should be well known, these are very hard/brittle magnets. If another magnet hits another or a metal object is pulled into the magnet, it will break and or shatter. use caustion. Better option to these are the magnets with brackets that have pre drilled holes that come with screw. Helps protect the magnet on 3 sides and mounts much better. They are more costly and do require them to be screwed onto location. These are also available through this seller. I would even say, using the backet ones with glue or double sided tape is a better option since the magnet would be more protected from damage. Do not store or place magnets near electronics (tv, cell phone, computer, gaming console) or any type of digital storage device. They will be damaged, erased or destroyed. This is basic practice with just about any magnet, so use caution. Ferrous materials (steel/iron) can and most likely will become magnatized if left on a strong magnet for awhile or if the object is slid off the magnet to many times. Rock/pull off object, dont slide it. (Thus why mounting is important). I tried mounting a few about 1-2in side by side( verticle and horrizonal) to give additional mounting strength but the magnets would attract eachother and the one with the weaker glue would come off and stick to the other. Thankfully they did not break. In summary, they are pretty strong and have many applications, they just did not suit my use perfectly and there are better options for similar uses. Instead of returning mine, I'm sure I will figure out another use for them. Only difficult part will be A- storage and B-removing the tape or de-glueing the tape for storage then re-glueing them. A nice option from the seller would be to provide non drilled brackets to place these in for added protection.

Yup, they're strong and awesome! On occasion they can break if they snap together too hard, so just be careful.

Magnets are very strong and work well. Needed a narrow super strong one to suspend an A/C vent diverter from a ceiling vent. The adhesive that comes with the magnets is not strong enough and separates from the magnet and plastic. Had to go purchase a different crazy strong adhesive tape that works much better (hence the 1 star subtraction).

My intention with these was to use a few pairs to hang a tapestry on the wall. Through no fault of these magnets, it didn't work. The tapestry was too slick and pulled out from between the magnets. The adhesive strips seems to be fairly strong and so are the magnets (3M Velcro Command Strips FTW!) I didn't break any of them but I also handled them carefully based on the reviews I read. Not sure what I'll do with them now but if I come up with something clever, I'll post it here. Until I do need strong magnets...

I received these magnets today and all 10 pieces were in excellent condition. They were not in a box as pictured but in a plastic holder that had an N52 sticker on the package. I have to say that these magnets are powerful. I suggest keeping them away from each other as they are strong. I recommend these magnets if they fit for your project.

Decent color, nice pack, not very strong though. It takes two to hold a pocket notebook on the wall.

I found that one of my latches had failed, causing the 20"/30" ceiling mount filter door to sag, and noticed another worn down considerably. I found a YouTube video describing how one man repaired his door latch using these Neodymium magnets. I tried this out, but could not get the two surfaces to close completely. I rewatched the video and found he used 5mm thick magnets, while these are 3mm thick. My workaround was to double them up (one on top of another), giving me probably 7mm thickness between the door and the top of the magnets. I used this double configuration on the short edge (where the breakage occurred), and two more on the non-hinge long edge, spaced in thirds (one at the 1/3 area, the other at the 2/3 area). By doing this, I was able to get the door to close together and hold without the latches being engaged. For safety I went ahead and latched them when I was satisfied with the repair. For transparency, I also bought these type of magnets in a round configuration, with a countersunk hole in the center. Using a 1" screw, a 3/8" rubber spacer, two washers, and a white porcelain knob handle, I was able to create two more magnetic attachment points, one in each non-hinge side corner. This configuration creates a door attachment system that doesn't put too much magnetic pull (so you can't open the door), and the knobs ensure I can change filters easily and safely. Finally, these are powerful magnets that are also fragile (although I didn't break mine). To separate them without damaging, follow the instructions to turn them, then slide them off. It is much easier this way. Also, the adhesive seems to stick well to these magnets and metal surfaces, but clean those surfaces well, and do your best to avoid touching the sticky part for the best adhesion. I will update this review if anything changes, but for now I am happy to not have to replace the whole door for lack of a couple of 5 five cent latches.

I'm not sure if I got a bad batch or what but the ones I got are extremely weak for Neodymium magnets. I have one button size magnet holding up 4 times the weight that three of these is barely holding up in my safe. I use the included adhesive strips to attach the magnets to a pistol magazine holder and they just slide down the safe door. I have other magnets that are smaller than these that are much stronger so I'm assuming I got a bad batch.

Es importante poner una referencia en el tamaño pues aparecen grandes y en realidad son muy, muy pequeños.

Excelente calidad y fácil de usar

Bastante fuertes, su tamaño es perfecto para mis propósitos

La primera caída y se rompen

Strong little magnets. Careful though will break easy if not handled gently when placing them or taking off but still really like them cause the strength