This game ready Mike Piazza Number Retirement logo baseball was collected after the July 30, 2016 game at Citi Field. Do not miss the opportunity to own this unique piece of Mets memorabilia. The Mets net proceeds from memorabilia sales for the remainder of the 2016 season benefit the Mets Foundation. For more information about the Mets Foundation and/or Amazin' Memorabilia, please visit mets.com/gameused. The availability of items varies, but for questions about this piece or different numbers, players, colors, or sizes please contact Amazin Memorabilia, The Official Source for New York Mets Game Used and Autographed Memorabilia, by emailing firstname.lastname@example.org or by calling 718-559-3144. An MLB Authentication Program tamperproof hologram is affixed to each piece of Amazin Memorabilia. For more information on this item, visit http://mlb.mlb.com/mlb/authentication/and enter the hologram listed above.