Due to their small size, these earrings would work well for a kid or an adult who prefers a small stud earring. Peppa Pig fans, rejoice! 🐷 These fun piggy earrings are copper based and sterling silver plated. The pin that goes through the ear is made of sterling silver (stamped 925). Please note, these earrings are brighter in person. They reflect their surroundings and I was wearing a black shirt when I photographed these. They have a standard pin earring back for pierced ears. See photos for size. *These photos were taken by me and show the actual product being sold. Thanks for looking!