Bought these as an accent to our kitchen and for those "occasional" fun, adult beverages. We have a hammered coppered sink and I wanted them as an accent on a shelf, but my husband WILL drink out of them for their intended use! As I just got them, I cannot attest to how they will hold up over time, but I expect they should be fine. The cups are lined with nickel on the inside and have a silver or stainless steel look to them. The outside seems perfect. We have had them for about a month now. Look as good as the day we unwrapped them.