I made this necklace using shiny mirror like flat link sterling silver plated chain that is 20" in length with a 2" extender. I added a beautiful piece of natural snowflake obsidian, oval in shape, set in 925 sterling silver. * Your purchase will arrive in pretty packaging SNOWFLAKE OBSIDIAN: * It is primarily recognized as a grounding and protective stone that balances body, mind, and spirit while promoting purity, focus, and the release of negative habits