* These balloons can deflate in low temperatures.
* With temperature increase balloons get back to their original shape.
* Avoid high temperatures, as it can cause the balloon to burst.
* Metallic balloons can conduct electricity through.
* Do not use next to power lines.
* Do not let the balloons freely float into atmosphere.
* Best to be used with helium gas.
* Not to be used by kids under 8. To be used only under supervision of adults.