10 White Latex Balloons. They are perfect for many of occasions, birthdays, weddings and baby showers. Diameter 30 cm. AIR INSTRUCTIONS: We recommend carefully inflating balloons with a balloon pump .They also look great filled with helium . *Comes uninflated Helium in a latex balloon will have a limited life span of up to 8 hours, inflation should be done as close to the event as possible. This life span may change in direct sunlight and warm temperatures.