The actual product is fine. I just wanted to help others not make the same mistake I did - I *assumed* this was a set of toning balls. It's NOT. It is a single ball. You need to order two. :-)
4 stars

I bought the blue 2 pound Stott pilates toning balls quite some time ago and continue to be pleased with them. They fit perfectly in my hands and are comfortable. According to the Amazon description, the blue 2 pounders and the green 3 pounders are both 10 cm high - this is absolutely not true. The green toning balls are significantly larger and are too hard for me to hold, rendering them useless to me. The green ones are also hard, not malleable like my blue 2 pounders. I give the blue 2 pounders five stars; if I could give the green 3 pounders zero stars, I would. 1 star

I received exactly what I was looking for + I received it even sooner than expected. 5 stars