bought a ball like one of these
http://www.p-wholesale.com/upimg/20/...ll-002-331.jpg
today accept its yellow and white instead havnt tried it but pumped it up 20 times and its massive like about 2-3 cm wider than a 1.5 litre soda bottle lol it scares the shit out of me its made out of a much sturdier ruber than my last ball which went out of shape into an ovally thing after about 10 pumps and it poped in me at 20 pumps this ball however stay a sphere at 20 pumps