To make the bead expire fragrance, you need to spray them with perfume or essential oil manually.
Perfume Lava Rock Beads, for Perfume Essential Oil Beads, Aromatherapy Beads, not perfumed itself. Unwaxed Natural Lava Rock Beads.Unwaxed Natural Lava Rock Beads, for Perfume Essential Oil Beads, Aromatherapy Beads, Dyed, Round, No Hole, Mixed ColorSize: about 13~14mm in diameter.