Wincraft Sports NFL Magnets * Tell the world you are a fan with your team magnetic banner. On your car, around the office, or at home, your magnetic banner looks great! It adheres magnetically - or use thumbtacks to attach to nonmetal surfaces. It is made of heavy gauge magnetic vinyl, so it lasts and lasts. Colors stay bright, indoors or out! Plus, it is flexible, so it looks great on curved surfaces. The magnet is 12" in size.