MONSTER ' 40" ' heart balloon pop!

I got this monsters from my local supermarket, they were sold in bulk in a plastic bag for a bargain. They were made in China, and at least did not showed up the traditional strong chemical odors I normally find in cheap balloons. I bought 3 of them, and tried two here, and both had defects caused by air bubbles trapped in the mold during manufacturing. They seemed to be pretty decent, but on my tests, are not as good as the ones made by qualatex. I bring my electric pump so you won't have to spent too much time in the blowing cycles.