40 Inch White Number 18 Foil Balloon for 18th Birthday or Anniversary Decor

[ Exquisite Detail Design ] .Remember, You Only Need To Fill The Big Number 18 Balloons Slowly With 90% Gas To Fully Inflate The Large Balloon And Prevent The Jumbo Helium Balloon From Bursting Due To Over-Inflation. After Filling The Giant Foil Balloon, No Need To Knot, The Air Inlet Is Self-Sealing With Built-In Glue, And It Can Be Completely Glued By Pinching.[ Material ] .Made Of And Material, 40 Inch Helium Foil 18 Number Balloons Are Durable. In Addition, These Big Number Balloons Are Waterproof And Can Float In The Water After Being Inflated.[ Party Essentials ] .These 40 Inch Helium Foil 18 Number Balloons Can Perfectly Decorate Or 18Th Birthday Party Or Other Anniversary Events, And Is Also A Great Photo Prop For Kids.[ Customer Service ] .If You Have Any Problems Or Dissatisfaction During Use, Please