Red Number 18 Birthday Party Balloons Decorations Helium Foil Mylar Big Number 18th Balloon

PERFECT SUITABLE FOR:The beautiful red 18 number foil Mylar balloons are the best choice for: 18th birthday party,18th wedding anniversary celebration,company 18th anniversary party and many other party decoration.PACKAGE CONTENTS: 2 Pieces 40 Inch Red number Balloons:No.1 Red number Balloon + No.8 Red number Balloon + 1 straw.CHOOSE THEM:The red number balloon is made of high-quality aluminum film that empty balloon is 42 inch,after filled with helium or air,it's 40 inch.Please use the straw in the balloon set to inflate it slowly.TIPS FOR NUMBER BALLOONS: Due to the thermal expansion and contraction characteristics of aluminum foil,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.Please avoid leaving the balloons in an outdoor high temperature environment for a long time.If the ambient temperature is too low,it will also cause the balloon to deflate.At this point,you can use the straw in the suit to inflate again,and the balloon will be in perfect condition again.SERVICE:We do our best to provide customers with better products. If you have any questions, we promise to give you a satisfactory answer without any delay.