Bottle for hobby purposes and house parties! Helium gas bottle - to inflate about 30 9" latex balloons. Volume 0.36 m3. Helium is a colorless and non-flammable gas, odorless and tasteless. The helium bottle is practical and easy to store or carry. The bottle is disposable and recyclable and you don't need to use it all at once.After use, close the bottle and use the remaining helium in it at another time. Balloons can be inflated from this bottle: Latex Balloon 9" (9 inches) - up to 30 pieces - approximate flight time 6-8 hours Latex balloon 10" (10 inches) - up to 20 pieces - approximate flight time up to 10 hours Latex Balloon 11" (11 inches) - up to 15 pieces - approximate flight time up to 12 hours Foil Balloon 18" (18 inches) - up to 12 pieces - approximate flight time up to 1 week