Got this K&F Concept 4-pack push-in ND/PL kit because I was tired of the sun turning every outdoor detailing clip into a washed-out, glare-filled mess. These little things fixed that instantly.No magnets or anything fancy – they just push in super tight and stay put.I’ve been throwing the camera around cars all day, banging it on trim, hoses, whatever… not once have they even wiggled. Feel way sturdier than I expected for the price.What they actually do:ND8/PL is glued on my camera 90 % of the time now. Kills reflections off wet paint, windshields, chrome – everything finally looks clean instead of blown-out and blurry from direct sun.ND16 and ND32 are clutch when it’s stupid bright out and I still wanna run 4K/60 with a proper 180° shutter. Motion blur looks natural instead of that choppy over-sharp video vibe.The light pollution one is cool for night stuff, cuts that orange streetlight glow a decent amount.Super easy to swap (literally just pop one out, push the next one in), and they come in a nice little case so I don’t lose them in my pocket.If you film outside at all with the Action 5 Pro, grab these. For like 1/4 the price of the “name brand” ones they work just as good for real-world use. Shots look 10x cleaner now – zero regrets.5 stars easy would get again.