This item features a Mylar/Foil balloon with several key features:

• Self-Sealing Valve: The balloon includes a self-sealing valve that prevents the gas from escaping after inflation.
• Inflation Options: You can inflate the balloon with either helium or air. Helium inflators or balloon air inflators can be used for this purpose.
• Balloon Condition: The balloon is sold uninflated, ready for you to inflate it as needed.
• Material: It’s made of Mylar/Foil material, which is a durable and shiny material often used for balloons.

In summary, this Mylar/Foil balloon is a versatile and convenient option for various types of inflations, and it includes a self-sealing valve to maintain the gas inside after inflation.