This terrific Necklace is crafted entirely from 925 Sterling Silver Rings — 216 Rings in total. The Rings are woven together in sets of two, a Chain Maille technique known as the "Two-By-Two Link Chain." The Necklace is a generous 20-1/4 inches in length, and can be further extended with the accompanying 4-inch Silver Extension Chain crafted from 5-by-6mm Silver Oval Cable Chain and 2 Lobster Clasps. The 8.2mm Rings are 14 gauge, enhancing the Necklace's durability and visual impact, and increasing its tensile strength. They are polished to a bright sheen. The Necklace is paired with a 23mm (1 inch long) Silver Lobster Clasp. This is a beautiful piece with timeless appeal.