I bought this ring in sterling silver. I love the look of the ring. I was hoping it would be a functional ring and that I would be able to add some Lego pieces to it. The raised "knobs" on the ring are a bit too small for Lego to snap onto it securely. I would suggest making them a little larger. What I have had to do with the Lego pieces is add a little clear nail polish to the holes. After drying a few minutes, the Lego pieces seem to stay just fine. Otherwise, the ring is beautiful in the polished sterling silver material.