Helmet Arm Kit by HOLACA, Extendable Pole,Curved Flat Adhesive Mount, 3M Adhensive Pads with Buckles for Gopro Hero 2 3 4 5 6 + 4S 5S 6Session Hero Session This is the replacement Curved + Flat Adhesive Mounts for GoPro Cameras. This product is motorcycle riders, racers and cyclists tailored 180-degree viewing angle GOPRO helmet mounting bracket. We have developed this wrench for all size GoPro knobs including Hero 1 2 3 4 5 6. This compact tool can double the torque of the bolt and will easily and safely fix your Hero with any mount base.