Ion Plating(IP) 304 Stainless Steel Ear Studs, Hypoallergenic Earrings, Star, Real 18K Gold PlatedSize: about 7mm wide, 7mm long, 1.3mm thick, pin: 0.8mm.Hypoallergenic Earrings: Made of Stainless Steel, our earrings are nickel free, which are gentle to skin. These earrings are ideal for sensitive ears.