The reason is that the customer reviews refer to the ball itself, but that is not separated by size. I thought that was misleading because a customer had written, the size would be good, but it depends indeed on what size to order. I had not noticed when ordering that the sizes are different, I thought it was the same ball in different colors. In fact, the Pink Ball is greatest and the black (anthracite) is the smallest. I think it should be more clearly emphasized in the description. My husband would not use the pink ball would be good if the size would be available in a different color.
