Material - High Quality 35 Mil Magnetic Material - Size - 5 1/2 Inch (Dia) - Care Instructions: Remove Weekly for Surface Cleaning and/or to Change Placement - Magnets are Made in the USA - These are Perfect for Both Indoor and Outdoor Use. They Can Be Place on Your Car as a Fun Way to Celebrate Halloween or Used Indoor for Parties. These are Perfect for Placing on Garage Doors, School White Boards or Lockers, Dishwashers, Refrigerators, or Any Other Magnetic Surface