These Rare Stone bracelets are made of Black Lava rock beads with a Swarovski Bacon Crystal in the center! The bracelet pulls have smaller Swarovski Bacon crystals at the ends. If you enjoy essential oils, the lava beads can absorb your favorite essential oil, brining your favorite scents with you day to day. Just apply a small amount to the black lava beads, allow it to soak for a few minutes, and pat dry.