HOTOR Car Vacuuum 1.Enjoy the essential oil whenever you are without directly touching your skin. 2.Creative sunflower design and fits with a variety of current fashion style.Not only is it a piece of jewelry, it is a function work of art. 3.The material used for the pendant necklace is 316L surgical grade stainless steel, it is the highest quality of stainless steel in the market. It would absolutely guarantee a lifetime! 4.The pendant has magnetic closure and it closes very well,you can never worry about the oil pad dropping out once you close it. 5.The pad is washable so you can clean them and use another type of oil in them.