What has convinced me of the product:
+ Secure and firm grip (video recordings little blurred)
+ Universal use! Not just at the bicycle
+ Simple / quick attachment
+ There are no residues on the handlebars etc. (also no damage)
+ Quite space-saving
+ Usable up to a pipe diameter of no more than 37 mm
+ Has an easily adjustable and fixable with a dial ball head (easy alignment of the camera)
+ Has a quick release (rapid assembly and disassembly of the camera)
My GoPro is firmly on my arm and I have a very secure feeling even with steep descents! :-)
I can forgive with a clear conscience 5 of 5 stars and a buy recommendation!
If after reading my review have further questions about the holder, do not hesitate to ask, I'll answer them promptly!