These small polished heart stud earrings can be a lasting reminder of your love! This is a nice gift for a little girl age 4 & up who has pierced ears. They are made .925 Sterling Silver, an alloy of silver containing 92.5% pure silver and 7.5% other metals to make the metal strong enough for making fine jewelry. The hearts are approximately 5mm. Nini does not recommend small items like this for children under 4 or for anyone who puts items in her mouth. Photos of jewelry are enlarged to show detail.