The book explains this over time because Kelsier is like, he can use all eight. He's super special. We discover that Vin is also a Mistborn. And so over the course of the book, he is teaching her how to use these different powers. So I've talked about them in these copper. The copper, the bronze bronze. They referred to as Tin Eyes because they can see stuff real good. Pewter allows you to get real tough.So they're just called thugs. Iron and beauties iron and steel allow you to pull or push off of metal. It's pretty dope.