White Gold Plated with 4mm Clear Cubic Zirconia Tennis Necklace. This classic 4mm tennis necklace features dazzling clear round Cubic Zirconia that sparkles at every angle. The necklace is secured with a box clasp. Chain length 20-inch Box clasp Polished finish Imported Product Specifications 20 inches Material & Care Rhodium-plated base metal Clean with a soft cloth.