I bought a 18 inch balloon. At home I inflated it to the maximum, I really wanted to ride it. It was awesome! I drove and enjoyed it, then jumped on it and drove again, his neck cracked (there was a big crack and a hole in the neck from where the air came out) I continued to ride it and jump more and more, the balloon did not pop, it is such a risk to masturbate the balloon with a crack on it! At the end it pop, I got as much pleasure as I wanted. looner