Helmet Adhesive Sticky Mounts, Flat Curved Mount Compatible with GoPro Hero 11, 10, 9, 8, 7, Max,& Other Action Camera (8 Pack) - AliExpress
Amazon.com : 18 Pcs Adhesive Mounts for GoPro Cameras, 9 Pcs Curved Mounts & 9 Pcs Flat Mounts with Sticky Pads, Tape Mount to Your Helmet, Bike, Board, Car : Electronics