The package includes two different base plates (a straight, a slightly curved). Is an adhesive surface that allows the plate to be mounted on any surface at the bottom of the black panels.
Attention! - Before cleaning the surface thoroughly and free of grease, otherwise it will not hold.
In my case, I have decided on the curved holder, because I attach the Action Cam on my helmet and take with mountain biking.
Processing holder is great and both panels lock into each other a tired. The yellow plate can be compressed to take out something to get them out of the leadership of the blacks.
As for the bonding performance - outstanding at the flat plate. When curved it depends.
On my Giro Remedy Full Face Helmet mount holds the not so good, because the curvature of the plate for the helmet surface is too strong. They therefore sticks only to the two front places in the middle it is not on. The resistance is therefore not met optimally.
I think here you have to try and see if it works.
TIP for securing: If the curved plate is not fulfilled for you, then use 3M Dual Lock. I glued it on the helmet and the underside of the plate - holds better.
Also works when the camera is to be mounted on the side of the helmet.
Overall stable holder made in which you have to see if it fits.