Promotion Go Pro Plastic Pivot Arm Extension Accessories+ Thumb Knob Kit for GoPro HD Hero Hero2 Hero3 Camera
Color Black Free Ship
Features
100% Brand New ! 
This is to make for Gopro extend in different angles ,it can be used with any other adapters like For gopro mount,for helmet mount ETC. 
Material: ABS plastic
 
included 
3 x pivot arm assembly ( 2 short and 1 curly long one)
3 x thumb knob
 
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