Giant Blue Number 1 SuperShape Foil A Giant Blue Number 1 Balloon lets everyone know which big milestone event you're celebrating! Whether you're hosting a first birthday party or one year anniversary, this blue number balloon is the perfect fit. You can combine this blue number one balloon with other numbers for a custom look at a graduation, birthday, New Year's Eve party, or anniversary. The metallic finish of this foil balloon makes it an eye-catching addition to the photo booth background at your event. Giant Blue Number 1 Balloon product details: 33cm x 86cm Foil Self-sealing Reusable Balloons arrive uninflated.