Make their birthday shine as bright as they do by decorating with a Rainbow 21st Balloon! This design features coloured rainbow stripes on the top and bottom of the balloon and has a "21st Birthday" headline written in alternating colours. You can pair this number balloon with other Colourful decorations to tie the whole party look together! The total inflate size is 45cm. Please also not that balloons arrive uninflated on arrival and don’t include helium.