Valeo Burst Resistant 65cm Body Ball (Green)
The Valeo burst-resistant 65-centimeter body ball helps improve your core strength, flexibility, balance, coordination, and muscle tone, making it an ideal addition to your exercise arsenal. Sitting on the body ball forces your body to stay balanced, thereby strengthening your stabilizing muscles and core. As a result, the exercise ball makes a terrific desk chair. As an alternative, you can design an extremely effective workout routine using the ball as a bench for dumbbell flies, shoulder presses, or ab crunches. Packaged with a workout DVD, a dual-action air pump, a wall chart with a step-by-step exercise program, plugs, and a measuring tape, the ball is a terrific choice for users of all exercise levels.
65 cm. Burst resistant exercise ball. Includes an exercise DVD and a high volume dual action air pump.

I am not a small person…250lbs and about 6′ tall. I bought this to use as a desk chair after seeing one of my favorite journalists using it. Much to my amazement…it works. I sit on it 3-4 hours a day and its perfect height for me to use as a desk chair and work on a computer. I have used it for occasional back exercising and it works well for that too.
The price and shipping from Amazon are awesome….I would highly recommend this item…as a chair and as a exercise ball.
I found this ball and pump to be of poor quality. And, though it said 65cm on the box, it only wanted to inflate to about 55cm. Just to accomplish this, I had to use a foot pump that I’d received a couple of months earlier with the purchase of an Altus exercise ball. By the time this Valeo ball got to 55cm it was very very full. And, again, the box said 65cm. I’m returning this ball and ordering another Altus.
This ball is of good quality, however, there is no way it could be inflated to the circumference of the tape included. It would have burst had I inflated it to this size. Also, did not come with wall chart as specified.