Sterling Silver Gold Plated Reversible 3mm Omega Cubetto Necklace Chain Lobster Clasp 16 or 18 inches Metal: 925 Sterling Silver Metal Stamp: 925 Clasp: Lobster Clasp Diameter: 3mm Inset picture shows both sides of the reversible omega chain. This is for one omega chain only. Images may be enlarged to show details. Please refer to the actual measurement of this item. This is 925 Sterling Silver. Not silver plated.