The quality ones is perfectly adequate and the handling very easy.
Balloons can if too much filling the helium bottle burst, but that would be all the balloons even with air filling.
A little fingertip felt is necessary to good / bulging inflate the balloons, but not to burst.
A complimentary returning the Alubehältern is possible.
All in all, a very successful offering that is easy to handle and presents no problems!
