This flexible adhesive mounting kit from K&F Concept has proved to be an excellent option for those of us who use action cameras in helmets, whether for cycling, motorcycles, extreme sports or POV recordings. The material is of very good quality: resistant, firm to the touch and with a powerful adhesive that adapts well to the curved shape of the helmet. I have tried it on different surfaces and it doesn't peel off with movement or with the passage of time. In addition, the base is slightly flexible, which helps improve grip without compromising stability. The package arrived well sealed and protected, with all the accessories included: the adhesive base, adjustment screws and the adapter for the camera. Everything was in perfect condition and ready to use. The assembly is very simple: you just have to clean the surface of the helmet thoroughly, apply the base and let it sit for a few hours for the adhesive to set well. Once placed, the support is very secure and does not move either with vibrations or with the wind. It is compatible with most GoPro, Insta360, DJI Osmo Action and similar cameras. Conclusion: A reliable product, easy to install and very useful for those who record on the move. The adhesive is strong, the base is flexible and the mount is stable. Excellent quality-price ratio. Highly recommended for those looking to record from the helmet without complications.