U7 Men's Cool Sea Wave Line Black Enamel Square Cufflinks 1 Pair 18K Stamp Gold Plated Shirt Studs Cuff Links Wave line design,square shaped, romantic and decent Material: high quality enamel.Metal:18K Stamp gold plated. Size: 17mm/0.6 inch,16g/piece. Comes with a U7 Jewelry design gift box. Nickel free