Make sure you blow this up to full screen by clicking the button in the bottom right-hand corner of the video.
For $9.99, it may be worth it if you need something new. But, like any other product, it won’t give you sick-pack abs all by itself.
This one actually has some research behind it, so I’ll give it the thumbs up… with a healthy dose of you-could-probably-spend-your-ten-bucks-on-something-better.
The Bender Ball Review – S.P.E.E.D. Weight Loss