Introducing the 83rd Birthday Balloon Circle! Our foil balloons come in various shapes and colors, offering a premium alternative to traditional latex balloons. While they may be pricier, their quality and durability make them worth it. Air-filled foil balloons can last for several months without significant changes. If filled with helium, they will float for about 3-7 days, depending on the surrounding temperature and the balloon's size. Each balloon features a self-sealing valve that prevents air or helium from escaping immediately after inflation. For best results, inflate using a hand pump or a drinking straw. For decoration inspiration, visit our online magazine at www.party-narozeniny.cz. The balloons measure 42 cm and can be filled with either helium or air, holding a volume of 13 liters. Please note: all our foil balloons come with a self-sealing valve. When inflating with air, use a hand pump. Once inflated, the balloons seal themselves and can also be topped up through the sealing valve.