Adjustable Curved Side Helmet Self Arm Mount Holder for Gopro Hero 4 3+ 2 1 Camera - by Frentaly …

Watch out these are made from super cheap plastic. even my knockoff GoPro camera came with better quality plastic. The only good thing about these is they use 3M tape (which probably is a knockoff itself but I cannot confirm that). The plastic covering the screw broke the second I hand tightened it.

Bad product.