This mylar balloon is made out of durable foil for a perfect touch to the celebration of your baby boy. The balloon is 18 inches across and is helium and hi-float capable. It is designed to coordinate with the full line of Little Prince party supplies. It has a blue crown centered on the balloon with blue, light blue and green dots featuring "A New Little Prince" surrounding the crown. Take to your local party supply store to get it filled at your convenience.