Sturdy and reliable: football balloons are made of quality aluminum foil, durable material with a certain degree of thickness, non-toxic and sturdy, won't burst suddenly; They can support for both air and helium inflation, both can fly Where to use: these football theme balloons are nice party decorations for football theme party, birthday party, sports game day, get-together, Thanksgiving, Christmas, home parties, festivals, catering, and other outdoor events Foldable and reusable: just use a plastic pipette to release the gas from the party balloon until the gas in completely released, and you can fold it and store for next use Size information: each foil round balloon is approx. 18 inch in diameter, and the football balloon is approx. 20 x 26 inch, large size with pretty appearance can quickly attract your guests' attention, lightweight, convenient to inflate and hang Automatically seal: use the inflator to pump the balloon to 80 percent, pull out the inflator, then the foil football balloons will automatically seal, no additional knots are needed, easy to decorate your parties (inflator is not included)