All Guardian Angel Devices come with a built-in magnet which securely attach to any metallic surface. The Nonmetallic surface 3M adhesive & screw magnetic mount easily attaches to any nonmetal surface, such as alumnium, fiberglass, plastic, rubber, wood, etc. Use this mount to easily attach your device to your motorcycle/scooter, boat, kayak or ATV or any other semi-flat surface.