Pink Sparkle Happy Birthday Balloon Got a girls birthday party coming up? try one of these shimmering foil birthday balloons to welcome partygoers into the room! We recommend filling with helium, which can be bought from your local party supplies shop, but you can also just blow it up as you would a normal balloon. It even comes with a ribbon for the birthday girl to hold, as the balloon bobs about! Holographic design. Measures approx 18" (45.7 cm) when fully inflated (comes with tying ribbon). Please note this is a flat pack balloon. (Unfortunately we cannot supply it inflated). Manufacturer's Warning: Possible choking hazard - Never leave young children unattended with balloon.