304 Stainless Steel Stud Earrings, Hypoallergenic Earrings, with Ear Nuts, Square, Mixed ColorSize: about 9.5mm wide, 9.5mm long, 3.5mm thick, side length: 7mm, pin: 0.6mm; 6pairs/card.Hypoallergenic Earrings: Made of Stainless Steel, our earrings are nickel free, which are gentle to skin. These earrings are ideal for sensitive ears.