The Gallery Collection Sterling Silver Men's Cufflinks combine the enigmatic qualities of black onyx with the sheen of polished sterling silver to create a modern, open design. A framework of lustrous sterling silver supports two glossy ribs of black onyx, extending the width of the cufflink surface. This design does not lend itself to engraving. Each cufflink measures 7/8 by 1/2 inches. You will revel in the swooping lines and contrasts of these gorgeous cufflinks.