I bought these to extend sterling silver necklaces that I have owned for a while. I was disappointed how different the "silver" colors of the extenders are compared the the necklaces they'll be attached to. These extenders are coated -- the description is clear about that -- but they don't have the warm silver color of uncoated sterling. They are VERY shiny and definitely a whiter silver. I'll use them because they're at the back of my neck and the difference hopefully won't be too noticeable. But from now on, I'll try to find uncoated silver if I want it to go with my older jewelry.