A 14mm diameter  blue  glass cut centre sits on a  square silver plated star setting. Mesh wrap cufflinks were very popular in the 1960's and 70's and are characteristically bold and showy.  The blue  glass is in a modern round brilliant cut with an inverted pavillion giving a more contemporary look.  The width of the mesh chain is 9mm and the length of the mesh is 40mm. For a double cuff shirt the bottom of  the cufflink hole in the shirt needs to be no more that 20mm from the edge of the cuff so that the mesh can wrap under the cuff and around to be fixed at the back and held in place by the toggle.