What kinds of leather are used in the collars and leashes?

Why does Two Dogs Up hand sew all their leather collars and some leashes, when most other makers use screws or rivets?

How should I care for my leather collars and leashes?

What is biothane, what makes it useful, and how do I care for it?

How do I care for my brass hardware?

My hardware isnt brass but it is still leaving dark marks on my collar… what’s that about?!