Goliton 90 degree rotary extension arms mount rig screw for Gopro Hero4/3+/3/2/1 camera Material: ABS Compatible Camera Models: Gopro Hero4/3+/3/2/1 90 degree Rotary Extension Arms This connector to lengthen and turn the camera shooting angle. With extended stainless steel locking screw, lock exception firm. Can be directly connected GoPro machine, positioning is more convenient and accurate.