Handcrafted stone diffuser, that also doubles as a piece of décor, helps you diffuse essential oils throughout your home, in a matte ceramic finish. * Porcelain cover * BPA-free plastic water reservoir and base * 3 or 7 hour run time * Ultrasonic technology and auto shut off * BPA-free plastic **How to use:** * Add 10-15 drops of pure essential oils to the stone essential oil diffuser.