Kenneth Gainwell Philadelphia Eagles Autographed Flash Mini-Helmet Signed mini-helmet from Eagles star running back Kenneth Gainwell - authenticated by James Spence Authentication (JSA) This limited edition flash mini-helmet has been hand-signed by Philadelphia Eagles running back Kenneth Gainwell. All memorabilia includes a certificate of authenticity and matching hologram. Hand-Signed by Philadelphia Eagles star Kenneth Gainwell Signature is bold and clear on the mini-helmet Official NFL Riddell mini-helmet Includes JSA certificate of authenticity and matching hologram