This item features a four-layer K18 coating. It is resistant to water and scratches, and is safe for those with metal allergies. It offers durability while providing a light and comfortable feel. Made of silver, it gives a simple yet sophisticated impression. This is a no-brand product, but of top quality. Material: Silver K18 triple coating Size: Approximately 21mm maximum Color: Pink Gold Other colors are also available. You can wear this with your existing necklaces and earrings, along with bracelets and rings, to feel glamorous when you go out! Diamonds and moissanite add a stylish touch!