These Julie Vos Monaco Stud earrings are a great addition to your jewelry collection. To use them, simply put them on like any other stud earrings. To keep them looking their best, avoid contact with lotion, perfume, make - up, or harsh cleaning products. Take them off before showering, swimming, exercising, or washing your hands. This will help maintain their beautiful luster and prevent any damage. The jewelry is made with 24K gold plate over nickel - free brass and is sealed to prevent tarnish, but proper care will ensure they last a long time.