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Title: "Professional??"
Review: I ordered this as it was advertized as being professional grade, like what you would expect to find in a good health club gym or the like. This ball seems no different than most others i've seen and used. I'm about 210lbs and when i use the ball for any exercise that involves sitting on it or laying on it the ball changes shape temporarily. When i get off of the ball it's not a ball so much as an orb. it returns to a round shape but for being as sturdy as Go-Fit seems to claim this thing seems to be crap. I'd recommend looking for something that is actually heavy duty if that's what you're needing. There are way too many junk exercise balls on the market and this one is a slightly better than average version. The 75cm size is really large too.
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