This Oklahoma Sooners Riddell replica helmet has been personally hand signed by running back Adrian Peterson with the inscription "Boomer Sooner." It is officially licensed by the NCAA and comes with an individually numbered; tamper evident hologram from Mounted Memories. 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. Please Note: This item has handling time. If an upgraded shipping method is chosen, the handling time shown will still apply.