This one of a kind necklace was designed so the skulls could slide across the thinner chains to either give the wearer something to occupy themselves with or for subtle movement unique to the necklace when worn. The skulls are oxidized bronze. The chains are sterling silver and the hand fabricated setting is sterling silver and copper filigree oxidized to a nice black. The dendritic Opal is hand cut by me. It has a gorgeous purple color to it and lightning bolts of white and black throughout the surface. This piece measures 26” and is a one of a kind.