Sametop Helmet Adhesive Mounts Flat Curved Mount 3M Sticky Pads Compatible with GoPro Hero (2018), Fusion, Hero 7, 6, 5, 4, Session, 3+, 3, 2, 1 Cameras The 3M manufactured VHB 4991 adhesive is the strongest and waterproof. Perfect for mounting on helmets, ski/skate/surf boards, dashcam, kayak or other action sports. The adhesive mount can be cleanly removed when heat (e.g. from a hair dryer) is applied. Compatible with Go Pro Hero (2018), Fusion, Hero7, Hero6, Hero5, Hero4, Session, Hero3+, Hero3, Hero2, Hero1 cameras. Whats in the Box: 3 curved and 3 flat mounts, All with 3M manufactured adhesive in each pack. The 3M manufactured VHB 4991 adhesive is high quality and strongest. These flat curved adhesive mounts are Industrial-strength waterproof, they make ideal for a wide variety of curved and flat surfaces. They are removable by applying heat to adhesive bond and peeling off mount. Perfect for mounting on helmets, skateboards, cars, or other applicable surfaces.