I have always purchased K&F magnetic filters.
Excellent quality for the price you pay.

The convenience of going magnetic is worth it.

I have a similar item, but 62 mm on a different lens and I'm very satisfied about the quality and the fast attaching filters using the magnetic construction. Because the 72mm item is out of stock in Romania, I had to order it directly from K&F. My surprise was a very fast and free delivery (5 working days!!!). Thank you K&F Concept.

Muy recomendables y prácticos , con una calidad precio estupenda.

This is something that I never expected to see since I use DSLR and lenses.
Honestly now, it makes a massive difference.
I am not talking about the filters because you can find these any time, I am saying here about the system itself which I find to be absolutely brilliant!

►VERY IMPORTANT!!
You cannot attach all 3 filters at the same time!!
ONLY one by one so dont try to attach more because they might fall and you damage them

Been wanting to try these K&F Concept Magnetic Filters since they were announced,I’m glad I purchased these they’re awesome,Super easy to use and swap when in the field,Just attach the magnetic ring to your lens and then it’s simply a case of attaching the filters with ease and swapping out,No hassle of having to screw the filters on and off, this is totally a game changer in my opinion, I own a fair bit of K&F gear and these are great quality as always,I have the k&f square filter kits but these are way easier,The supplied case is really nice too,They’re not cheap but you get what you pay for, I’m overall extremely happy

I'm not a pixel peeper, so for me this is as good as any other set of name brand filters as far as quality of the glass is concerned. I also think that the concept is top notch-the ability to change filters in a grab-and-go fashion is just excellent. I shoot quite a bit of studio light painting that often includes the use of ND filters. Being able to pop the ND off and on will be a welcome addition-in the studio. Sadly, that's about the only use I can see for these. My list of unhappiness has relegated these to the occasional use drawer.First, the most used filter, the UV, doesn't stick very well. While the other two seem quite firm, the UV pulls off easily and seems a bit small-it moves around side-to-side in the mounting ring. The other two snap in firmly and securely. I would never trust that filter to stay when out hiking or even just out and about, even though I always have a lens hood in place which *should* keep it from getting inadvertently knocked off. Then there is the issue that it is quite shallow, which should be a good thing, but the result is that the lens cap just barely catches. Then when removing the cap, the filter often comes off with it, and then can release and send the filter to the floor.I thought I would just keep my existing traditional screw on UV filter in place and just leave the adapter ring on over it to add the CP or ND as needed, but the poor attachment of the lens cover is still a problem. If this was to work, I would have to come up with some sort of carrying option as having the included pouch in my camera bag for two or three filters is a no go. That thick pouch is a nice idea, but it takes up as much space or more than many of my other more useful accessories. It is actually larger than my ultra-wide angle pancake lens.Perhaps I should write to the company and get a replacement UV filter, but even with a firm attachment, I just don't think this is for me. Consider your personal use cases and go from there.