The Pip Pop Neon Pink Heart stud earring is Hypoallergenic 18k gold and enamel with a flat screw back. Designed for babies, toddlers, kids, teens, and adults, these earrings offer fun style and comfort. They are waterproof, tarnish proof and perfect for sensitive ears.,The Pip Pop Neon Pink Heart stud earring is Hypoallergenic 18k gold and enamel with a flat screw