This bat has been personally hand-signed by Ken Griffey Jr. with the inscriptions "630, 1836 RBI, 13X AS, 97 AL MVP, HOF 16." It is officially licensed by the Major League Baseball and comes with an individually numbered, tamper evident hologram from TRISTAR and Fanatics Authentic. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. Limited edition of 10.