This Retro Rainbow Birthday foil balloon is a great way to add a touch of fun to any event. Measuring 18 inches, this two-sided balloon is made by Betallic and is self-sealing for easy inflation and deflation. Perfect for birthday parties, this balloon will bring a burst of color and energy to any event. And, with discounts available for larger quantities, you can get more for your money. So, if you're looking for an eye-catching addition to your event, this Retro Rainbow Birthday foil balloon from Betallic is the perfect choice.