1pc will arrive uninflated as a 40” Rose Gold number 1 foil balloon, when inflated the balloon will go to a 34" size. Balloons can be inflated by air with a long straw or by purchasing a disposable helium gas cylinder. Add Hi-Float with helium to keep balloons inflated for longer.  Easy to use - Our Foil Balloons are self sealing once inflated. Choose your numbers as per your theme or occasion. Combine the numbers according to the age, date or special event you are creating. All the balloons are checked and flat packed individually in protective packaging. Good Quality Material - our digital balloons are made of premium quality polyester film & aluminium foil with uniform colour creating the spherical shape & shiny finish.  Each balloon has 2 hanging holes to hang as a decoration also. These balloons are perfect for celebrating Adult, Teenager & Children's Birthday parties, Anniversaries, New Year's Eve, Weddings, Christmas, Baby Showers, Seasonal Events, Graduations, Engagements and all Special Occasions. After using the balloon, you can use a long straw to deflate and save it for your next event if you want. Our giant balloons are a perfect addition to any party or event, ideal in a backdrop for taking beautiful pictures for Instagram, Facebook, Social Media and creating lovely memories to share with friends & family.  We aim for 100% Customer Satisfaction, if you are happy then we are happy. Please contact us first in the event an issue occurs. If you have any questions or problems about our number balloons, please feel free to contact us.