2 Marble birthday balloons foil 18"
3 Marble latex balloons 12"
Ribbon and weight icluded
Helium is included in the price 
Latex balloons generally last between 8-12 hours filled with Helium
Helium inflation(£2.50 each) Hi-Float(to extend their lifetime to 2-3 days 
Foil balloon last approx 4-7 days