The 81st Birthday Balloon Circle is a delightful addition to your celebration! Our foil balloons come in various shapes and colors, offering a premium alternative to traditional latex balloons. While they may be pricier, their durability and air-tight design ensure they last for months without significant changes. When inflated with air, these foil balloons can remain vibrant for several months, while helium inflation allows them to float for about 3-7 days, depending on temperature and balloon size. Each balloon features a self-sealing valve that prevents air or helium from escaping immediately after inflation. For air inflation, we recommend using a hand pump or a drinking straw. For more decoration inspiration, visit www.party-narozeniny.cz. The size of the balloons is 42 cm, with a volume of 13 liters. IMPORTANT: All our foil balloons have a self-sealing valve. Inflate with a hand pump for best results. After inflation, the balloons will seal themselves, and you can top them off through the sealing valve as needed.