Features:

• Valeo 55 Centimeter Body Ball comes with a wall chart illustrating a step-by-step exercise program and a high-volume air pump
• 55-centimeter model is the optimum size for users 4-feet, 11-inches to 5-feet, 3-inches tall
• Ball provides a low-impact and highly effective method for strengthening your core abdominal and lower back muscles
• Ball offers a wide range of functions: desk chair, training ball, and baby bouncer
• Sturdy rubber ball cleans easily and is stable for exercises

This ball held up to a lot of use. We used it to sit on and bounce baby to sleep, boys played on it rolling around, and even used it for some exercise occasionally.

Either this ball doesn't pump up to the full 55cm or the description and estimations are wrong. I'm not quite 5'3" and I have short legs. So, based on reviews I had read this ball sounded like it should work. Short with short legs... Nope. It was still too small. I did like the ball itself and the pump that came with it. So, I bought the 65cm ball which has worked out well. That one, however, does not pump up to the full 65cm without getting to hard to work with. If you're going to buy a stability ball make sure you ask a trainer or someone which size would work best for you based on your leg length and not necessarily your height.

This is the 2nd ball I've purchased through Amazon that came mislabeled as 65cm. The first was the TKO (which, by the way, is much better quality than the Valeo). I ordered 65cm and both balls, despite what the boxes said, were only 55cm. I already have a 55cm ball (which is correctly labeled BTW and which I did measure to make sure that it really is 55cm). I'm starting to think it is impossible to get a 65cm from Amazon!

I bought a couple of these balls to stretch my back and to occasionally do light bench/military presses on. Balls are balls. Nothing really remarkable here, so I'll comment on the build-quality. The construction appears solid and as are the others in my home that I've been using for 2 years. The included foot pump is compact and brightly colored like a kid's toy (yellow and blue plastic). It takes a LONG time to inflate the ball with it. I stopped counting after 300 pumps. I alternated feet and got tired from the pumping. I would suggest a bike pump instead.

Lastly, the ball has a slightly greasy feeling from the manufacturing process. I always wash my balls before using.

This ball lives in my living room. When we don't feel like sitting on the floor, my husband or I will sit on it. It's fun to bounce up & down & laugh at each other. I know I'm supposed to use it for exercise, but I plan to bring it to work & use it to sit on. I've heard that works your core muscles because you're balancing all day long. I'm hoping it will be high enough that I can still reach my keyboard & see my screen. I didn't know it came with a pump that you just step on to fill the ball with air. I really was happy to get this when it arrived & it still makes me happy every time I see it.