360 Rotating Swivel Helmet Self Shot Pole Mount Adapter For Gopro 3 4 Xiaomi Yi SJcam Fast Ship From China! Tracking Number 360 Rotating Swivel Helmet Self Shot Pole Mount Adapter For Gopro 3 3 Plus 4 Xiaomi Yi SJ4000 SJ5000 SJcam Features: This 360 degree swivel can fit telescoping extendable pole or other DIY use with universal Gopro mount Help to fix monopod on your helmet