Actually, probably 5 star adequate for modeling balloons branded Qualatex. But what has been sold to us by Amazon of "Tobis Laden" was either a product or a counterfeit package, which has been stored for too long or wrong. A label that eventually about the durability information could have given was pasted over. The balloons this bag could be no longer good model and bursting constantly. 80% Committee. No Fun. Another bag Qualatex-modeling balloons contrast, was very good.