This listing includes: (1) Mylar 18"self sealing Mylar balloon. Balloon size is 18" uninflated. This balloon is self sealing & can be inflated with helium or air. (When inflated with air the balloon will not float.) DO NOT over inflate balloon or it will pop. This balloon doesn’t include string. The balloon is being sent flat & deflated. You can take balloon to your local party store or super market to have filled for a small cost. We can create custom orders within our shop, look forward to new & creative arrangements coming soon Any questions feel free to contact us Rams Football Mylar, Charger Balloon, Balloon., Party, Birthday Super Bowl Party