This pair of CuffLinks Sterling Sterling At Sign Cufflinks set will instantly please those who are tech-savvy or involved with the dotcom business. Shaped like an at-the-rate symbol, this set is bound to make you stand out in a crowd. Sporting a silver plated body, this set is not easily susceptible to damage or oxidization. The design is topped on a slender post fitted with a rectangular base. This base is shaped like a whale's tail and hence the name, whale back closure. You need to flip this base open, slide it through your cuff eyelet and then flip it back to its horizontal position.