Air escape: insert a straw, backlog of gas.Can be used multiple times.
1. to foil balloon must be inflated slowly, can pump to 90%, and then use a straw to blow, easy to control volume, in order to avoid bursting. If there is a case of two layers of aluminum foil sticky encounter, be sure to stop inflation, gently pull the hand two layers of aluminum foil and then inflated, or easily damaged.
2, sharp objects / not clean ground / direct sunlight and excessive extrusion, are easy to get the ball skin damage, burst.
3.when the ball of aluminum foil folded to save as much as possible tiling, must not casually crumpled, in addition, to keep dry, water can not rub.
4. due to thermal expansion and contraction of gas in winter, or the temperature is lowered, should be appropriate to the foil balloon qi; summer or when temperatures rise, should be appropriate to the foil balloons deflated to avoid bursting. When to foil balloons deflated to avoid bursting. General helium / hydrogen can only float after 6-14 hours, so helium, hydrogen must be filled in using the day (pay attention to safety)!
1 x Foil Balloon