The helmet attachment using original 3 M manufactured V HB 4991 adhesive and premium plastic base mount is high quality and the strongest. Perfect for mounting on helmets, ski, skate, surf boards, dashcam, kayak or other action sports. Use these camera tethers and adhesive anchors to further secure your action camera in extreme conditions. The tethers attach to the camera housing is backdoor and the adhesive anchors attach to your gear.It can keep your action camera always with you. All mount buckles come with rubber locking plug. It is designed to prevent any accidental release of the quick-release buckle and your go pro, and also tightens up the fit to reduces vibrations. Helmet adhesive mount compatible with Insta 360 ACE Pro, X5 X4 X3, X2, X, ONE RS, R, GO 2 3, GoPro Hero 13/12/11/10/9/8/2018/7/6/5/4/3+/Session, Go pro hero Max, fusion and DJI Osmo Action 5 Pro 4 3 2. Package including: 3 x curved adhesive mounts, 3 x Flat adhesive mounts, 2 x Adhesive Anchor, 4 x rubber locking, 2 x Horizontal Surface Quick-Release Buckles, 2 x Vertical Surface J-Hook Buckles, 2 x Long Thumb Screws, 2 x Tripod Mount for Gopro Adapter. Helmet Sticky Mounts Adhesive Buckle Mount Screw Accessory Kit Compatible with Insta360 ACE Pro X5 X4 X3 X2 X RS R GO 3, GoPro Hero 13 12 11 10 9 8 Max Fusion Session and DJI Osmo Action Cameras