Made of High Quality and Durable MaterialThe powerful small magnet is made of strong magnetic material - Neodymium Iron Boron, nickel-plated on the surface, anti-rust, anti-corrosion, anti-drop. long life Smart DesignThe surface of each mini magnet is nickel-plated to prevent the metal surface from being scratched, the shape of the strong magnet is easy to grip, reducing the sliding of the magnet on the metal surface, multiple protections for our metal surface, avoiding damage to the surface and protecting your refrigerator. Ready to pack for easy portability and storage. WIDE APPLICATIONSThese small magnetic pins are perfect for placing papers, notes, photos, postcards, magnetic cards, magnetic calendars, dry erase boards, filing cabinets, lockers, etc. on refrigerators, doors, whiteboards, and more. Make offices, classrooms, schools, homes and kitchens look stunning, beautiful and bright [Customer Service Support] If you are not satisfied with any of our products, you can contact us at any time