304 Stainless Steel Ear Studs, Hypoallergenic Earrings, Half Round/Dome, Mixed ColorSize: about 15mm long, half round: 6x4mm, pin: 0.9mm, 3pairs/card.Hypoallergenic Earrings: Made of Stainless Steel, our earrings are nickel free, which are gentle to skin. These earrings are ideal for sensitive ears.