Show off your Red Sox fever in style! A tribute to a true one of the most iconic baseball cities in the world. Wear these amazing cufflinks for days that you can't make it to Fenway. Celebrate 12 AL Pennants, 7 World Series titles and more with the Boston Red Sox Pennant Cufflinks. The cufflinks are constructed of heavy-duty base metal and expertly enameled. Officially licensed by Major League Baseball.