To Prevent Infection: Clean both of your ears and all earrings with alcohol Before and After wearing them. Do not put Hydrogen Peroxide (or any Bleach) on any Silver jewelry....These sterling silver Very Tiny stud earrings are perfect for multiple piercings, including cartilage, helix, and 2nd ear piercings. They are made of nickel-free sterling silver. These earrings are small, measuring only a few millimeters in diameter, so they are ideal for those who prefer subtle, understated jewelry. Despite their small size, they are still beautifully crafted. Whether you're dressing up or keeping it casual, these earrings are a great addition to your collection.