Sterilized and prepackaged for in-store use, piercing earrings meet or exceed Food & Drug Administration (FDA) guidelines and cannot be purchased online. Please visit a store near you for a full selection of piercing earrings. The perfect first pair, these piercing earrings set in 14K solid gold each feature a 3 mm ball stud. Made in responsibly sourced 14K solid yellow gold for everyday wear. Diameter: 3 mm *These short posts are ideal for babies and small children.