This chain design is crafted with authentic Solid 10K Gold guarantee! Has perfect shape and size use daily and an amazing gift for anyone. DETAILS• Metal: Gold• Purity: 10K (Stamped 10K for Authenticity)• Chain Width: 4.5mm• Chain Length: 16inch 18inch 20inch 22inch 24inch• Chain Weight: Average 0.345 gram / per inch• Clasp : Premium Lobster Clasp for Added Safety Please message any questions. With Love Bosphorusgold.