This essential oil diffuser pendant necklace was made by hand using a natural red earthenware clay. The heart design has a leaf imprint on the front. This piece is left unglazed to absorb your favorite essential oils and gives it a natural, organic look. It was fired in the kiln to over 1900 degrees. The pendant is approx. 1 7/16" long. It comes with a black satin cord necklace with a silver plated lobster clasp. Choose from 18", 20", 22" or 24" cord length. To use your diffuser necklace, just drop 1-3 drops of essential oil onto the pendant and wait 1-2 minutes for it to absorb into the earthenware clay. Then wear your diffuser necklace and enjoy the natural scent all day. Add more oil as needed. To change scents, wait until the scent on the pendant has faded, then add the new scent. You can also mix different essential oils on the pendant for unique blends.Purchase multiple pendants and buttons from my shop for no additional shipping charges.