The stitches of authentic game used balls from an actual Pirates game, set in sterling silver cufflinks. Truly a conversation piece, own a piece of history and proudly display your team spirit. Every pair includes a hologram number. Search at www.mlb.com/authentication to find out more about the ball that was used to make your pair of cufflinks. A piece of history caught in time. But wear with caution, your coworkers may break out in the wave. Cufflinks by Tokens and Icons.