This is truly a fab chain necklace, with amazing detail on the atomic-oriented beads. One has a spinning goldtone bead in a textured oval hoop, and the other a flattened "atom" with the electron paths also textured. The necklace has two strands, each of which is 60 inches long, so you can even quadruple wrap it. The necklace does not have a clasp, which is too bad because I think it would have been signed by a designer! (If I had designed it I certainly would have liked credit for it.) Really an interesting, beautiful necklace.