This Spiderman Happy Birthday Foil Balloon by Anagram International is perfect for any fan of the web-slinger! Measuring 18 inches, it is two sided and self-sealing, making it easy to set up and take down. It's a great way to decorate for any superhero themed birthday party or event. With its bold colors and iconic design, this balloon is sure to add some excitement to your special occasion. It's a great way to show your love for Spiderman and make your celebration even more memorable.