Do you want to solemnly tell your family and friends the sex of your unborn child?! Are you having a genderrevealparty (gender party) Girl or Boy?! Then this delicate ball is perfect for you. Shiny foil balloon for a baby shower - Boy or Girl. The balloon is blue and pink, decorated with a gold metallic print. Before inflating it has a diameter of approximately 45cm (18) and after inflating it has a diameter of approximately 35cm (14). It can be inflated with both air and helium. It is a perfect decorative accessory for parties related to the birth of a child, adding shine and charm.