This 16" x 20" photograph has been personally hand-signed by Khalil Mack. 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 finished piece measures 26'' x 34.5'' x 1'' and is ready to hang in any home or office.