Celebrate your birthday themed party with these 11" round 1st Birthday Circle Stars - Boy printed latex balloons. The perfect balloons for your birthday party, these 11" Qualatex party balloons are great for setting the scene! Mix these with a selection of our birthday foil mylar balloons for the perfect balloon bouquet clusters. The balloons can be inflated with helium to float or with a balloon air inflator to hang around the party area like a balloon arch garland. Balloons arrive uninflated.