Hypoallergenic: surgical titanium posts Size: 10 mm Gift-ready packaging Rainbow star studs that shine bright for kids. Made from hypoallergenic 925 sterling silver with white gold and palladium plating. Secure screwback closure won't slip during play. Safe, comfortable, and perfect for young jewelry lovers. Features Type : Screwback Stud Earrings that are secure Material : The post that goes into the ear is Surgical Titanium, Rest of the material is brass with a yellow gold plating or Palladium plating (similar to white gold just more hypoallergenic) Stone : Crystal Size : 10 MM Age : Young Child-Tween Hypoallergenic kids earrings - no more sensitive ears! Free shipping for all orders Satisfaction Guarantee or money back - you will love these cute earrings for kids!