【Includes】3 x Curved Adhesive Sticky Mounts, 3 x Flat Adhesive Sticky Mounts, 2 x Horizontal Surface Quick-Release Buckles, 2 x Vertical Surface J-Hook Buckles, 2 x Long Thumb Screws. | 【Material】The helmet attachment using original 3M manufactured VHB 4991 adhesive and premium plastic base mount, strongest and waterproof. Replacement accessories are made of high quality polycarbonate and stainless steel. | 【Highlight】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. | 【Compatibility】Compatible with all Go Pro Hero12, Hero11, Hero10, Max, Hero9, Hero8, Hero7, Hero6, Hero5, Session, Hero4, Hero3+, Hero3, Hero2, Hero1, Hero(2018) and DJI Osmo, AKASO, SJCAM, APEMAN, Campark action cameras and more. | 【Application】Perfect for mounting on helmets, ski/skate/surf/snow boards, dashcam, kayak or other action sports. Small parts used on chest mount, head mount, clamp mount, protective case accessories replacement. | 【Tips】Ensure adhesive mount is firmly pressed and left in an environment over 10°C (50℉) at least 24 hours before use. To remove it, use a hairdryer or heat gun to soften the adhesive and slowly peel it back.