Crunches are the most common way to tighten and tone your abdominals, but without the proper back support this exercise can often do more harm than good. The BODYFIT® core training ball properly positions your body so you can target all the middle muscles, including those hard-to-reach obliques. This 9-inch inflatable ball has a non-slip surface for stability and comes with an instructional DVD to help you get the most out of your workout.
9-inch inflatable ball used to help sculpt abdominals and increase your balance, coordination and flexibility
This is the WORST stability ball for exercise. First, there are no instructions on inflating and it visually appears that the straw provided to inflate the ball goes in the center of the closure pin. Not at all, though if it did the design would be better because trying to shove the pin back into the ball after removing the straw causes the ball to lose air tension. You are left with e slightly limp ball. I attempted to do core exercises and the lack of shape (air tension) in the ball hurt my back when every other ball I've used has soothed / supported my back. The plastic is flimsy, a bit thicker than a beach ball though not sturdy and even with low air fill it feels like the ball may pop under my back and I weigh about 107lbs.
It is going back today.
Was this a gift?:
Bottom Line No, I would not recommend this to a friend