TattyTeddy Mother's day - foil balloon

Foil Balloons are sensitive to extreme temperature changes. In cold air, they may appear deflated; warm air should expand them again. Extreme head could cause the helium to expand and burst the balloon.Inflated with helium, this balloon will float up to 30 days and can be refilled.Foil balloons may conduct electrity. Do not release helium-filled foil balloons outdoors or use near ovrhead power lines. Use only non-metallic ribon and attach the balloon to a weight to keep it from floating away.

When you are filling the balloon with helium you must have a special safety valve, becouse that ventil stops filling the balloon when it is full. And if you are filling it with air, than you must pay attention to the folds on the baloon becouse they must remain.