This brand new necklace is an 18 inch chain link necklace in genuine .925 sterling silver, with an additional 2 inch extension chain and a lobster clasp closure. The entire necklace is rhodium plated to prevent scratching and to ensure the necklace retains that platinum luster, and it features a small and large circle link center. The circles are approximately 10 millimeters and 16 millimeters.