This moon essential oil diffuser is perfect for those who love smokeless aromatherapy. It comes with a moon shaped concrete ball and tray. Perfect for your office desk bathroom and so much more. This was a popular item for the holidays. How to Use: Place a few drops of essential oil or spray your favorite perfume allow fragrance to soak in and enjoy your smokeless aromatherapy experience. Our moon aromatherapy ball is just beautiful to look at while enjoying relaxing aromas. Please review your orders to ensure accuracy of all information. All orders are custom made. This item is made with cement and is hand poured. Please note: Cement products can at times have small imperfections. While we do our best to avoid this it can happen at times. Measurements: Tray: 3.25" Moon 2.75"