I bought these earrings as a birthday gift for a 15-year-old. They were perfect for her, since she is one of those flip-flop-wearing adolescents who still enjoys "dressy" post earrings. She was thrilled with the gift. Even my 20-something daughter lives in flip-flops, so these earrings should have a very wide appeal. Making those earrings nickel-free is especially important since so many people have contact dermatitis that can be quite serious in pierced earlobes.