There is an excellent site...biewertalk.com...where you can find the answers to your questions. (Lots of pics too, just in case you are really curious and have spare time
) There are several members here who are very knowledgeable on the Biewers as well.
Confuses the heck out of me, I know that! I got yelled at when I asked questions and started trying to figure it out...LOL...so I just quit asking!