[hazardous]|Helium gas for inflating balloons.|The amount of helium balloons this cylinder will inflate depends on the size of the balloons you create. This number ranges between 12 to 50 inflated helium balloons. If you are using 18inch mylar (foil) balloons you can inflate approximately 15.|Inflates approximately 50 x 9inch helium balloons

Float time of a latex balloon: 5-7 hours.
Float time of a latex balloon with ULTRA HI-FLOAT (available separately): over 168 hours (7 days).
Float time of a foil balloon: 4+ days