This is one of my favorite chains to use, so fluid and shimmery. This cool tone sterling silver picks up all the colors in the rainbow. I placed faceted moonstones and blue topaz stones intermittently with bezel pendants on two of the strands. Each strand is separate with its own clasp and extension chain. Each necklace is sold separately or you can purchase all three as a set at a lower price. The top necklace with the Blue Topaz bezel pendant measures 15" inches and comes with an additional 2" inch extension chain. The middle Y chain comes with a 1.5" inch extension chain. The bottom chain has no extension chain.