Rated 2.6 out of 5★ by 5reviewers.
Rated 1 out of 5★ by apjones34 This is the worst ball I bought this ball to use as chair at work for myself and a co worker. I have taken them back now twice and got different ones. They do not seem to hold the air in them, I think it might have something to do with the stupid red weight in it. I do not recommend this ball to anyone. 01/15/2013
Rated 1 out of 5★ by JDK123 Real bad Losses about 20% of its air each day. This should not happen in the year 2013. Now I have to go wait in the return line tomorrow. 08/10/2013
Rated 1 out of 5★ by Sykronic Horrible exercise ball, not reliable. I purchased this ball for use with my desk at work, as exercise balls keep my back strong and allow me to move more freely as I work, but this exercise ball failed to perform on the first day. Firstly, the ball loses about 10% of it's air within an hour, and loses practically half to 3/4 of it's air in a 24 hour period, making it a constant effort of maintenance to pump it up repeatedly throughout the day, which should not be the case for an exercise ball. Secondly, there's a huge red sand plug that's off-center of the ball, making the ball very clumsy for balance and counter-productive to use for exercise. There seem to be far too many weld joints for an exercise ball, which feel like there's that much more potential for a failure in a complete seal, which apparently may be causing the constant loss of air, or the black rubber gasket at the air plug is faulty and constantly leaking. The cost for the ball is far too expensive and not justified, you will get a much better value for your dollar buying a more simplistic and functional ball than this one. 05/30/2013
Rated 5 out of 5★ by ReneeLovinIt Happy with my core ball My ball feels better. Good product. 03/10/2014
Rated 5 out of 5★ by LoveHalloweenToDeath Love it. Took a while to inflate, but it is working perfectly and cannot wait to see results. 08/01/2014