These are knot design earrings! Material: Stainless steel K14 gold coating Size: 2.3 cm (height and width) The material is high-quality surgical stainless steel 316L, used luxuriously. Also, since it's stainless steel, it's water-resistant, doesn't discolor, and doesn't rust, which is its greatest feature. It's the perfect material for accessories you'll cherish for a long time. * It may rust if exposed to salt. If you immerse it in seawater or sweat on it, please rinse it with clean water.