The football has been personally hand-signed by Tom Brady and Rob Gronkowski. It is officially licensed by the National Football League and comes with an individually numbered, tamper-evident hologram from Fanatics Authentic and TRISTAR. 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 case is made of 1/8" thick acrylic and features a clear acrylic removable lid with engraved Super Bowl LI logo. Perfect for displaying a collectible football. Officially licensed by the National Football League. Inner dimensions: 11 3/4'' x 7 3/4'' x 7''. Outer dimensions: 12 7/8" x 9 7/8" x 8 1/4".