Jonhamwelbor 21 Number Balloons Gold Big Giant Jumbo Number 21 Foil Mylar Balloons for 12th or 21st Birthday Party Supplies 21 Anniversary Events Decorations

PERFECT SUITABLE FORgold 21 number foil balloons can both be used as number 12 and 21 balloons They are the best choice for 12th or 21st birthday partyweddinggraduation anniversaryholiday celebrationschool class partyHalloweenChristmas and New Year party decorationYou can stick the gold 12 or 21 number balloons on the wallwindow or dooryou can inflate with both helium or airyou can even place them on the bed floor or tableprovide your party or home a good display PACKAGE CONTENTS 2 Pieces 40 Inch gold number BalloonsNo2 gold number Balloon No1 gold number Balloon CHOOSE THEM The silver number balloons are made of aluminum foil and the size of the balloons is 42 inches which is 40 inches when filled with helium or air 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 foilplease avoid filling more than 90 of air or heliumIf it is overinflatedit can easily cause the balloon to explode at high temperaturesPlease avoid leaving the balloons in an outdoor high temperature environment for a long timeIf the ambient temperature is too lowit will also cause the balloon to deflateAt this pointyou can use the straw to inflate again SERVICE We are committed to providing customers with better products If you have any questions please contact us in time we will do our best to solve the problem for you