An Oakland Raiders Riddell NFL Authentic Full Size Current Helmet hand signed by Marshawn Lynch. Marshawn earned the nickname "Beast Mode" for his powerful running style and consistent ability to run over defenders and break tackles. He is a Superbowl XLVIII Champion and a 5x Pro Bowl winner. AUTHENTICATION: The item is accompanied by a Certificate of Authenticity - Serial Numbered and Databased Hologram - Picture of Marshawn from the signing.