Materials: - Acrylic - Nickel Free Metal Our pieces are carefully crafted, with a meticulous eye for detail. To ensure hypoallergenic quality, we use nickel-free metal. While our earrings are designed to be durable, we advise treating them with care, as they are wearable works of art. Please avoid using rubbing alcohol to clean your earrings, and remove them before entering water. Each earring is accompanied by its own earring card and backings, allowing for a polished presentation in both your physical storefront and online shipments.