Chenier Aromatherapy Essential Oil Diffuser Sky Necklace, Stainless Steel Pendant, Rose Gold Gift Jewelry Hypo-allergenic surgical grade 316L stainless steel. Top quality and durable. Chenier Aromatherapy diffuser Sky necklace offers you an elegant way to put your favorite essential oil or perfume iton the air without direct contact on your skin. 6 free wool pads included (scented oil not included) with the necklace for your convenience. Only takes some drops of essential oil or perfume fragrance to last all day. To reuse, apply small amount of soap and rinse with water. Pendant measures 1.25 inches in diameter, chain mesuares is 23 inches, spring ring clasp. Sturdy magnetic clasp providing easy opening and closing of pendant.