Foil balloon number 1 (78cm)
The package contains one empty helium-filled foil balloon in the form of a number.
The height of the filled balloon is about 78 cm. The filling hole has a self-closing system. Foil balloons are sensitive to temperature changes (in the cold it shrinks, and in the warm it swells). Very hot air makes the helium swell, and the ball can burst.
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