盒裝「生日快樂，太空人」氣球Want to offer a balloon to a child for his birthday? Here is the ideal box for a little Cosmonaut in the making, it contains a balloon with a cosmic illustration. Consider adding a little surprise (candy or chocolate bars). This balloon has 2 unique sides for more surprises! A helium filled balloon that flies away when you open the box. Stays inflated for up to 10 days. Don't throw it away, you can reuse it infinitely.