This full size speed replica helmet has been personally hand-signed by Mike Alstott. It is officially licensed by the National Football League and comes with an individually numbered, tamper-evident hologram from 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. Includes certificate of authenticity and hologram! Mike's signature is guaranteed authentic through the Fanatics Authentication system.