High-quality foil letter balloons, perfect for birthdays, anniversaries and New Years Eve parties. Made of high-quality aluminum foil, these balloons are safe and non-toxic. They are self-sealing and can maintain inflation for nearly a week. Each Large Alphabet Pink Foil Balloon measures 16" (41cm) when fully inflated. They are easy to inflate with an air-filled hand pump or straw and are widely applicable for any celebration, including birthday parties, weddings, baby showers, outdoor parties, home parties, and other on-site decorations. Hang these balloons to show how much you care!