I'm not sure of the exact kind of bantams they are. Heck, I didn't even know they had different breeds.
These full grown pullets are tiny! I don't really know why they are so popular, certainly not for the meat and egg production. We are getting eggs from them, which is good even if it takes two to make a normal sized egg. We even had our first egg present while driving home.
My wife likes them and the tractor is now in use, so now we are both happy.