This baseball was signed by Mets pitcher Steven Matz. Do not miss the opportunity to own this unique piece of Mets memorabilia. All net proceeds will be donated to the Mets Foundation. 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 email@example.com 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.