Latex Balloon 30cm - Christening Boy Balloon Medium blue printed latex balloon. Size: 30cm or 12 inches Quantity: 1 Suitable For Air or Helium Inflation. All balloons delivered uninflated. Helium inflation booked in store only. Celebrating the Christening of a Special Little Boy. Use alone to create an original centerpiece or mix and match with different balloon sizes for a custom balloon arrangement!