Sterling Silver 1.5mm Cable Link Chain Necklace Metal: Genuine 925 sterling silver Size, weight: 16" - 2.4g 18" - 2.5g 20" - 2.7g 22" - 3.0g24" - 3.1g30" - 3.8g 16", 18", 20", 22", 24", 30" feature spring ring clasp. Select chain length from dropdown list