These CuffLinks Onyx Screwdriver Duo Cufflinks have a unique design that is sure to catch your attention immediately. The tops of the cufflinks are barrel shaped and have an etched texture. Onyx, a semi-precious gemstone is used to round off the two ends of these barrels. The highlight of these cufflinks is the way parts of the barrels unscrew to reveal flathead screwdrivers. These screwdrivers can be used on eyeglasses and other similar, delicate items. Made entirely from stainless steel, the cufflinks also possess an attractive, metallic luster. Their round, swivel backings are easy to use and have the logo engraved on them for an authentic look.