TWO FINDINGS:
The tubes which serve as arms are not very strong, with a Gopro Hero 3+ black Edition after, the pole is a kind of arc.
The tubes are tight to each other and making a picture "deployed boom", the camera turns down.
For a product to 10 it is true that I was not expecting a super strong stuff but then to fear that the boom breaks ...
I advise you to buy a more solid product.
Have a good day.