Industrial-strength for secure mounting.These Curved + Flat Adhesive Mounts attach your GoPro to curved and flat surfaces using industrial-strength waterproof adhesive. Can be removed by heating the adhesive bond with a hair dryer then peeling off the mount. Curved + Flat Adhesive Mounts Highlights-Includes 3 Curved Adhesive Mounts and 3 Flat Adhesive MountsCompatible with a wide variety of curved and flat surfacesIndustrial-strength adhesive ensures secure mountingRemovable by applying heat to adhesive bond and peeling off mountNote: Always select a helmet that meets the applicable safety standard when you use a helmet with a GoPro helmet mount. Always follow the helmet manufacturer's instructions on safe helmet use.