Deco Bubble Balloon - 21st Birthday A Stretchy Plastic Balloon That Protects The Balloon Inside , making them last 10-14 days. Fill with a colourful standard Latex balloon or with a cool shape to create your own unique bubble design. When using helium, inflate the Deco Bubble as well as all the balloons inside the Deco Bubble with helium. When using air, inflate ALL balloons with air. Dimensions : 56cm Diameter All balloons delivered uninflated - Helium inflation booked in store only.