With eye-catching, vibrant colours, you can create the perfect fun-filled atmosphere for celebrating such an important day - from bright blue and purple to gentle pink and green, there’s something for everyone! Balloons have a matte assorted colour base and are made from natural rubber latex. Included colours are: orange, dark purple, light purple, dark blue, light blue, dark pink, light pink, red, yellow and green. Printed on the balloon in white are multiple number 18s with stars and swirls. Balloons are of helium quality and can be inflated with either air or helium. 18th birthday balloons measure 12” (30cm). Balloons are 100% biodegradable.