The closures did not work at all. I wanted a relief for the sealing of helium-filled balloons for the wedding of my brother. We met on the eve and the balloons filled (100 pcs.). The first have already crashed towards the end of filling the entire balloon, but we were confident that these are isolated cases and we are the next day, to noon, have more than enough. Unfortunately, it was not like that. The helium has escaped from all 100 pieces..
We have the closures lt. Of, used lack, instructions. I'm going to buy these caps ever again. I prefer to sit the whole night to make knots in the balloons !!
