(5) Since the balloons are counted manually, there may be a 1-2 quantity error in the whole package, which is normal. If you mind, please be cautious when purchasing. If the error exceeds 2, please contact our customer service immediately. We will make up for it when you make your next purchase.

We sell brand new uninflated balloons. The air pump pumps air, which cannot make the balloons float. To make the balloons float, you must inflate them with hydrogen or helium. Helium is sold online, but it is relatively expensive. Hydrogen transportation is unsafe. Express delivery does not allow the transportation of hydrogen. There are two ways to obtain hydrogen: to purchase in bulk at local oxygen stations, or to buy a hydrogen generator online to produce your own hydrogen. Please note that only balloons with a diameter of 18 inches or more made of aluminum foil can float when inflated with hydrogen/helium. Balloons with a diameter below 18 inches or special shapes cannot float when inflated with hydrogen or helium. (Warm tip: If you want to save costs and operate conveniently, balloons of the appropriate size can also be purchased with poles to support them, or by using glue or transparent tape to stick the balloons to the wall or ceiling, which can achieve a very good decoration effect).
Please remind everyone: aluminum foil balloons are not recommended to be inflated with electric air pumps, as it is very easy to burst the balloon!