This was exactly what I needed to use K&F filters with my phone camera to improve background scenery.I have both threaded and magnetic filters therefore I can use either with the right adapter. This is for the threaded filters which I found to be cheaper than the magnetic filters, probably because they are more commonly available whereas magnetics are a niche market in my opinion but just as effective. Plus you are not restricted to one brand of filter with this adapter.It does come in a shiny K&F box and is made of plastic so probably around half the price and a clip to grip the phone rather than a sprung screw which I did not like in the metal version because, in some phone models, it has to touch the screen and can trigger or prevent apps from working correctly.Your phone should have a significant enough camera, to see the difference when using filters. My Huawei Mate 10 Pro is weak in the camera department unlike a Samsung S22 or better.Considering what this adapter can be used with rather than the plastic it is made from I know this is good value for money and provides more choices to maximise my photography to the next level.