Bird wren scent locket is a hand crafted brass pendant that holds inside a porous diffuser porcelain pebble. Infuse your pebble with perfume or essential oil and enjoy the scent through the day. Essential Oil Diffuser Necklaces are a beautiful way to enjoy your favorite essential oil all day long. Whether you are looking for the health or emotional benefits of essential oils, diffuser necklaces will not only smell great but look great! This diffuser necklace comes with 3 ceramic pebbles in three colours to place a couple drops of your favorite oil or perfume. The pendant represents a fairy wren, It is an active little bird, and so its symbolic Celtic meanings include activity, vibrancy, alertness and efficiency.