Got this for my "nifty fifty" Canon 50mm 1.2 L lens on my Canon 5D Mark IV, and they're pretty solid.
You get three filters: (1) ND4 (2) CPL and (3) MCUV which are all pretty useful in different scenarios.
A huge plus for the included case, soft brush, and price point.
Overall, I would recommend this for any creator doing photography BOTH indoors or outdoors, and looking to significantly reduce reflectivity!

It's $35 kit is quite affordable and well priced. It may not satisfy the most professional photographer or videographer, but it will make most hobbyists and semi-professional people quite happy.

I hope the photos are helpful at illustrating what each lens offers. It comes all in a protective case so that you can carry them all with you. The lens fit as expected. they're costing about $12 each including the case and the brush. That's an amazing deal!

One reviewer said that the nd4 filter is not really nd4. Frankly, I'm not sure if he is right or wrong. But since I don't have any ND filters, I'm pretty happy with this one.

Very good makes for great photos

These are for my 24-70 2.8II Lens which annoyingly takes 82mm filters unlike all my other glass which is 77mm.
This comes with a UV, CPL, and ND4X in a nice padded case. Each filter comes sealed in a bag inside the case, and a free lens pen comes with it.
all the filters threaded on nicely - no grabbing or binding.
the UV filter shows some significant reflections which means the AR coating is lacking. the filter is pretty thin compared to the older UV filters.
the CPL is very thin, has a nice smooth action to it, rotates cleanly and freely, no binding. the extinction ratio again could be better, using my TV (sorry for my hand) you can see it does a good job of blocking the 90* polarization but visibly I could see through it. Better filters block this better and produce high contrast of polarization
the ND filter was good, no issues other than a bit of the same coating reflections with the UV.
Overall good for the money but there are better filters out there.

This kit offers all the basics a photographer needs out on the field (UV, CPL, ND4).

I found no distortion, defects on the ring/threads or scratches on the filters which speaks volumes on workmanship.

Anti reflection coating is not the best I've seen BUT there is something some of the rest of the reviews are missing:

VALUE. At this price point people should understand they are getting a GREAT starting/intermediate photographer's filter kit. Yes your $250 kit has better anti-reflection, polarization, protection, But it's 750% more expensive.

The included brush feels of good quality, and the carrying case feels durable and easy to access as well.
If you're looking for an intermediate, yet great inexpensive UV, CPL, ND Kit. This is a great value.

I am pleased with the quality of the filters, as the seller said they are of very high quality, I have just received them and have already taken some photos and I am very impressed with the quality of the images and the tension of the photos.
The filter cover is very good quality with velcro and very strong mesh,
The brush is very soft and hairy, it seems natural, came with good packaging and the truth I think some filters and professional photo brush.
I am pleasantly surprised that the quality/price ratio is very good.
To congratulate the seller.

Started using them this weekend. They make a huge difference. Easy to install and change or stack.

I ordered a 67mm set and received 62mm instead... The seller responded quickly to resolve the issue. would recommend

Works well to achieve even lighting

Lenses arrived but the ND4 filter was cracked. I reached out to the company to ask for a replacement and they shipped out a whole new set for the trouble. I was impressed with the response speed and their willingness to make things right. The lenses are decent quality as well. I've used the circular polorizing filter to take some great shots of river otters, using the filter to eliminate glare off the water surface. If you don't know the filter is meant to be turned while you look on your screen to find the best angle of rotation for glare reduction since this is variable. While it won't kill it completely, it will reduce glare significantly and improve the picture quality. The UV filter is great quality for the money and I took pics with and without and saw no reduction in quality with the extra glass in front of my lense. I have not used their ND4 lense yet but I did purchase their Nano ND1000 lense to take some long exposure shots and the nano line is even better quality glass and worked perfectly. While I did see a slight color shift I was able to fix in post without much effort. Pretty much par for the course when it come to heavy ND lenses based off my research in the matter. Overall, I feel this is a good buy for the beginner photographer like myself that wants to dabble with lenses and not spend a small fortune. I will say you need to spend a minute cleaning these lenses once you get em since they have some fibers and smudges on them. I would assume this is standard practice at this price point.