The SuperShape Happy Birthday Glitter Banner Foil Balloon measures approximately 86 cm x 48 cm and is supplied in a pack of 1. This versatile balloon can be inflated with both air and helium, allowing you to choose the perfect way to display it at your celebration. Whether you want it to float gracefully with helium or be used as a decorative piece with air, it will add a touch of sparkle and festivity to your birthday party! 🎈🎂✨