This autographed full size Riddell speed helmet has been personally hand-signed by Tim Tebow of the Florida Gators (2006 & 2008 BCS National Champion & 2007 Heisman Trophy Winner).This autograph is certified by Beckett Authentication Services (BAS) Witness Certification. That means that a Beckett representative was present when this item was signed. It comes with the numbered authentication hologram with a QR code that verifies the authentication on the Beckett website.