【Specifications】: The overall diameter after inflation is about 45cm, and the thickness is about 10cm.
(1)Due to the lack of contractility of the aluminum film balloon, it is essential to inflate it slowly. You can use an air pump to inflate it to 90%, and then blow it with a straw to facilitate controlling the amount of air, to avoid bursting. If there is a situation where the two layers of aluminum film are stuck together, you must stop inflating and gently pull the two layers of aluminum film apart before re-inflating, or it is easy to damage the balloon.
(2) Sharp objects, dirty ground, direct sunlight and excessive compression can easily cause damage or rupture to the spheres.
(3) Due to the thermal expansion and contraction of gases, in winter or when the temperature drops, it is necessary to appropriately inflate aluminum film balloons; in summer or when the temperature rises, it is necessary to release the air appropriately to avoid bursting. Generally, after charging helium or hydrogen, it can float for 6-14 hours, so helium or hydrogen must be charged on the day of use (when charging hydrogen, safety must be carefully noted!)








