30 mil - Get the information out for your local political candidate's office by mailing this business card style magnet made in the USA from non-toxic material to the constituents in your community. It's flexible, has squared corners and a clear protective laminate. The magnet's dimensions are 2" x 3 1/2" overall. A write-on surface is also available. This is a great way to show how approachable a sherif, judge or mayoral office is. Kick off your campaign now!