... delivery.Small profit and quick turnover. This is helium balloon.Our Advertising balloon is of high quality.They are colourful,attractive. ... Please don't hesitate to contact us. And the balloon is very light,it's very easy to be ... them 2.5m(diameter) big,these kind of sphere balloon can't be too big, You can choose ... least 2m,at most 3m. But the Airship balloon,we generally make them 6m long,if you like ...