30 Inch Black Number 30 Foil Balloon for 30th Birthday Anniversary Party

30 balloons, Black number 30 foil mylar balloon 40 inch number balloons, Large number 30 balloons is perfect for 30th birthday anniversary party decorations.
Number 30 Mylar Balloon, Material: foil membrane Jumbo foil balloon 30 balloons,made of high-quality aluminum film.Please use the straw in the balloon set to inflate it slowly.
2 Pieces 40 Inch Black number balloons:No.3 Black number balloon + No.0 Black number balloon .
Please avoid filling more than 90% of air or helium.If it is over-inflated,it can easily cause the balloon to explode at high temperatures.You can reused the foil Mylar balloons.