Hypoallergenic and Nickel Free. 8mm Iridescent Lava Stones Silver Wire Hoop Pendant Silver Earwires Aromatherapy Earrings Handcrafted in The USA these Iridescent Lavastone not only add a pop of color but also acts as a porous surface perfect for diffusing your favorite essential oils, allowing you to carry your preferred scents with you throughout the day. The hoop design adds a modern twist to the classic essential oil diffuser concept, making these earrings perfect for both casual outings and special occasions. Each Iridescent Lavastone Aromatherapy Hoop Earring is meticulously handcrafted to ensure quality and attention to detail. If you are drawn to the grounding properties the vibrant energy of Multi-Color Iridescent Lavastone, these earrings are a true reflection of your unique style and personality. Simply put a drop of your favorite sent of essential oil onto a lava stone and the sent will last 12-24 hours.