Tarnish Resistant Apple 304 Stainless Steel Ear Studs, Hypoallergenic Earrings, Stainless Steel ColorSize: about 6.5mm wide, 8mm long, pin: 0.7mm.Hypoallergenic Earrings: Made of Stainless Steel, our earrings are nickel free, which are gentle to skin. These earrings are ideal for sensitive ears.