The girls that are 8U are using an 11 inch softie, I think. I wouldn't swear to it. The parents bring the balls for that age group, but I am throwing it, too. When I use a harder 11 inch ball, no one thinks that it is big. It is not an ASA league.
I can remember when LL was using an 11 inch ball at 12U and the bigger girls were throwing it around like a baseball. LOL
But, then, I can also remember when everyone pitched from 40 feet and used a 12 inch ball. It is a wonder that we learned to play at all. Now, even the base paths are shorter for the 8s and 10s.
8s are 55' i think but 10s are regulation 60'