?Foil balloons can be air or helium filled.
Pump steps:
Please do not over-inflate the balloon which will damage the valve, 70%-80% air fill will be sufficient.
Find the inflation valve, insert the nozzle of the pump into the balloon valve, and start pumping until 70%- 80% full.
No need to make a knot or use tape to seal the valve, it's automatically sealed after the pump is withdrawn.
