These 2MM April Crystal Birthstone Ear Studs are 24K gold plated and hypoallergenic, perfect for sensitive ears. Medically sterilised for safety, they offer a safe and hygienic option for everyday wear. Key Features Hypoallergenic Ideal for everyday wear Allergy-Free Safe and Hygienic Nickel-Free Medically Sterilised for Safety Suitable for Sensitive Ears Key Materials: Surgical Steel base; 24k Gold Plating; Crystal gemstone (April birthstone); Sterile packaging.Studex: Leaders in hypoallergenic earrings, ideal for sensitive ears.Piercing Stud: Requires use with a Studex piercing instrument by a certified technician.Medically Sterilised For Safety.