Foil balloons can be air or helium filled. If you want to air fill them you will need a balloon pump. They self seal and then you can place them on the Bride's bed or stick on the wall. They will generally last for 1 week air filled.
If you want to helium fill them, we can do that here in henworld for an extra €3.50 per 18" foil balloon and this includes ribbon and a weight. Helium filled foils last from 2 to 4 weeks. For further information please use the messaging service on the website.