I need to know what size leg rings to order for my girls to use when they are fully grown in order to name them and tell them apart. I've always had giant cochins but have fallen in love with the buffs and it started when we adopted a year old buff rooster. So now we have six girls also. The are about 3 months old and just beautiful. So if someone could give me an idea on the size of leg ring to order I would appreciate it.