I'm thinking there isn't any. But figured I'd ask since I'm trying to find a seat for my dads lady friend's gd to use in my dads truck if she goes camping with us. I've never seen the little girl but my dad says she is about the same size as my son who is about 47" and 47 pds. Far as I know the girl isn't in any seat right now as the parents or grandma do not have a vehicle.