A fun and colourful way to congratulate somebody with this special product. Make everybody smile and make your party an occasion to remember Attractive design Great party accessory Easy party planning solution A great party planning solution for those special events. Each of these spectacular balloons is approximately 18" in size and made from shimmering foil designed in a heart shape. Perfect for any occasion these spectacular foil balloons will turn any event into a memorable celebration. When inflated with helium these self sealing balloons will float for over 1 week. Using foil takes the pressure out of DIY room decoration as you can do it the night before.