Hi! Noob questions!

Hello! I just picked up a Sterling by MM Ray34. I started off with a trans blue Sterling SUB, one of the new ones. I like it a lot but when I found the Ray34 for a killer price I jumped on it and I am more than impressed with it. The Ray makes my SUB feel like a toy! Anyway I’ve always wondered what the two posts are on the sides of the saddles? Looks like they have hex key holes almost like I can adjust the bridge hight. Also I stopped in the Guitar Center today and noticed that the new Ray34 they had was made in Korea now as mine was made in Indonesia. When did they switch? Also my Rays neck is wider than the new model. I thought the were the same but nope. Anyway, thanks for your time and all the info!