30th Mylar Birthday Number Balloons


Birthday girl, your wish is our command with these amazing balloon banners perfect for your 30th birthday celebration! Totally on trend with shades of rose-gold, these large balloon banners can't be missed.

Includes two 34"/40" number balloons
  • Rose-gold + metallic 
  • Perfect for birthday parties, anniversaries, special events, retirements, photo shoots/backdrops, and much more!
  • Balloons ship flat and deflated
  • String NOT included and metallic tassels sold separately. 
  • Balloon will float when filled with helium. Will not float when filled with air.
  • If filling with helium, we recommend carefully filling balloons with helium as close to the event as possible for best results.
  • Do not over-inflate, as these balloons may pop.
  • High altitude can affect the balloon's ability to float. Foil balloons are sensitive to extreme temperature changes.
  • In cold air, they may appear deflated; warm air should expand them again. Extreme heat can cause the helium to expand and burst the balloon.
  • We recommend carefully inflating balloons with a balloon pump or helium tank. We do not refund popped balloons.