I have two of my favorite beach balls, 20'' Pink Intex Hello Kitty ones. They are so cute and squeaky and brand new. I inflate both of them, using my lungs and blowing as hard as I can until I'm lightheaded and dizzy! But I get them fully inflated. After that I can't wait to bounce on them with my big ass, and I do so, popping the first one with a big bang! The second one proves more durable and takes quite a while to go, watch as I bounce and grind and plop on it until it deflates.