I picked these up for my Osmo Action 6 recently because let's be honest, the standard footage can look a bit digital and harsh sometimes. Filming in bright sunlight the shutter speed just goes through the roof, so these correct that. These K&F filters are actually a bit of a lifesaver for getting that proper cinematic look without having to mess around with complicated settings.The snap on design is the best bit for me. When you are out with the family you really do not have time to be screwing things on and off while the kids are getting restless. You just press them on and they stay put. I was a bit worried they might ping off when the camera is getting knocked about, but that anti slip washer does the job perfectly. I have used them with my usual cage and they fit fine, so no issues with compatibility there.You get a decent range in the box. The ND filters are essential for those bright Saturday mornings at the park so you can keep your motion blur looking natural rather than like a choppy home movie. The CPL is great for cutting out the glare on the water when we are at the beach, and the black mist 1/4 is a nice touch for some of the more artistic shots. It softens everything up just enough to make it look like you actually know what you are doing with a camera.For the price, the value is excellent. You get six filters that cover pretty much every lighting situation you will run into. They feel solid, the glass is clear, and they do not add any weird colour casts to the footage. If you want your holiday videos to look a bit more professional without spending a fortune, this set is a bit of a no brainer.