13 piece Happy Birthday Letter Balloons 16 Inch Foil Balloons Birthday Party Decorations
How to inflate the foil balloons
1. Find the seal first (the seal is composed of two layers of plastic paper),
then insert the nozzle between the two layers of paper.
2. Insert the nozzle into the seal around 2~3cm, pinch the plastic paper against the nozzle
(to prevent air leakage), then fill the air.
3. When the balloon is almost 90% full (the balloon is slightly bulged), reduce the amount of inflation
and slow down the inflation rate.
4. Attention: Don’t inflate too much air, especially in the high-temperature environment.
After filling it, gently squeeze the seal with your finger.