I bought these for a wheel build and was immediately taken aback by the finish. Unlike most other black nipples I've used, these aren't a true black. They're more like a gun metal or a dark silver. Function-wise they work great, but I wish I'd gone with another brand for my vanity wheel build.
I hate to double-review, but after more thought I need to temper that first review a bit. The finish isn't a dark black, but it is durable. I have used these and black DT nipples with HED hard anodized rims. The DT nipples' finish (very black) gets easily scratched off by the rim during the first steps of lacing. The Wheelsmith finish looks as new after a complete build. No scratches from the rim or truing tools.
3 stars for finish color, 5 stars for finish durability.