Follow the steps below to customize your ‘It’s a Boy’ banner! Get your message across loud and clear with these air-filled 16″ numbers and letters strung on a ribbon. Banners come pre-inflated and are available for pickup or delivery. Select your date and time at checkout. Air-Inflated Balloon Lifespan Air-inflated latex  5 to 7 days Air-inflated mylar, foil, and plastic  1 weeks