The price and color and nodules were what attracted me. I inflated by foot pump but it did not have structural integrity to support a 200 lb man. IT appeared and felt firm but any body weight would flatten out the sphere. Overnight, it burst without a load. IT needs ribbing or thicker membrane. Disappointing.Size was cool. Perhaps back to the drawing board. Fix this R&D. $10 bucks, worth a shot, what the hell…

This is my second Pilates ball and by far my favorite one. I use this at least twice a week in my workout routine with my Linda Woolridge tapes purchased on Revain. The little nubbies help with gripping and I keep it just a little less than fully inflated.