1. Type: This is a Happy Birthday Superhero Helium Foil Balloon, suitable for superhero-themed birthday parties and celebrations.
2. Size: The diameter of this foil balloon is approximately 46 cm (about 18.1 inches), making it a noticeable and decorative addition to your superhero-themed celebration.
3. Decorative Weight: The item description mentions that a decorative weight is not included. If you plan to use this balloon as part of a decoration and want to keep it anchored in place, you may need to purchase a separate decorative weight.
4. Price: The price of this item includes both helium and ribbon. Helium is used to inflate the balloon, allowing it to float gracefully, and the ribbon is included for tying and displaying the balloon.

This Happy Birthday Superhero Helium Foil Balloon is a fantastic choice for superhero-themed birthday parties, especially if you want to add a dash of superhero excitement to the celebration. The inclusion of helium and ribbon makes it convenient for decorating your special occasion.