Lightweight 3 - way Pivot Arm Assembly Extension + 4 x Thumb Knobs

Lightweight 3 - way Pivot Arm Assembly Extension + 4 x Thumb Knobs 1. Descriptions: 1)Lightweight 3 - way Pivot Arm Assembly Extension + 4 x Thumb Knobs could make your GoPro cameras extend in different angles to capture every wonderful moment. 2) Stainless Steel Thumbscrews with Molded ABS Plastic as handy replacements and compatible with all HERO cameras. Versatility allows for GoPro cameras to extend in different angles. 3) Compatible with GoPro mounts and accessories and