Rhodium On 925 Sterling Silver Black 2mm Silk Cord Necklace with Spring Ring Clasp (Many Sizes) Materials: Silk and Rhodium on 925 Sterling silver (Stamped) Color: Black and White Gold Length: ~ 51cm (20 inches) Cord Thickness: ~ 2mm Size: Spring Ring Clasp: ~ 8mm (length) x 6mm (width)