A Tampa Bay Buccaneers Speed Flex Authentic Lunar NFL Helmet hand signed by Rob Gronkowski. The item and signature are in excellent condition. Rob is a 5x All-Pro First Team, 5x Pro Bowler, and 2x Super Bowl Champion. AUTHENTICATION: The item is accompanied by a Certificate of Authenticity - Rob Gronkowski Exclusive Serial Numbered & Databased Hologram - Picture of Rob from the signing