This K&F Concept snap on filter kit is compatible with the DJI Osmo Action 6 and includes CPL, ND8, ND16, ND32, ND64, plus a black diffusion filter. Installation was quick and easy. The filters fit over the camera like a glove and snap on securely with no looseness or alignment issues. I included a picture of my apartment pool in January taken with the polarizing lens.Once installed, everything sits flush and looks seamless on the camera. The lens filter also adds an extra layer of protection, which is a nice bonus beyond just exposure control. It feels secure enough that I would be comfortable leaving one on during regular use.In practice, the filters perform exactly as expected. Exposure control is predictable, glare reduction works well, and image quality stays clean with no obvious color shifts. The ND range is useful for bright outdoor shooting, and the CPL behaves the way it should.One small nitpick is that the filters are not labeled. That said, they are easy enough to tell apart once you use them, and it did not impact actual use. The included carrying case is very nice, keeps everything organized, and makes storage and transport simple.Overall, this is a solid, well fitting filter set that does what it promises and adds protection at the same time. Easy to use, well packaged, and reliable.