ProPto(TM) 3-way Pivot Arm Assembly Extension with 4x Thumb Knob Screw fits For GoPro Hero 3 2 1

Description

Functions: This chain can make you connect with relevant accessories. It can be installed on the bicycle to achieve three-direction turning, which can make your camera work better. Compatible with: gopro camera 3/ 2/ 1. Package Included: 2 pivot arm assembly 4 thumb knob