This full size speed eclipse helmet has been personally hand-signed by DK Metcalf. 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. The autograph includes an official Fanatics hologram and matching COA for authenticity purposes. Comes with a tamper-evident hologram from Fanatics Authenticated. Officially licensed by the NFL. Includes certificate of authenticity and hologram! DK's signature is guaranteed authentic through the Fanatics Authentic serial numbered hologram system.