The most suitable application: The bright Black 30 balloon numbers foil Mylar balloons are the best choice for: 30th birthday party, wedding, graduation anniversary, business,events, school class party, Halloween, Christmas and New
Year party decoration.You can stick the Black 30 balloon numbers on the wall,window or door,you can inflate with both helium or air,you can even place them on the bed, floor or table,provide your party or home a good display.
Package Contents: 2 Pieces 40 inches Black number Balloons:No. 3 Black number Balloon + No. 0 Black number Balloon + 1 straw
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 to inflate again.
Choose Them: The Black number balloon is made of high-quality aluminum film that empty balloon is 42 inches,after filled with helium or air, it's 40 inches. Please use the straw in the balloon set to inflate it slowly.