Jonhamwelbor 18 Number Balloons Silver Giant Jumbo Foil Mylar

Jonhamwelbor 18 Number Balloons Silver Giant Jumbo Foil Mylar

• Suitable Occasions: Silver Number 18 foil Mylar balloons are suitable for 18th birthday party, 18th wedding anniversary celebration, company 18th anniversary party and many other party decorations
• Package Contents: 2 Pieces 40 Inch Silver number Balloons including No.1 Silver number Balloon and No.8 Silver number Balloon
• Material and Size: 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
• Care Instructions: 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 to inflate again
• Inflation Method: Use the included straw to slowly inflate the balloons with either air or helium for best results and to prevent damage to the foil material