This listing is for a Dak Prescott Signed Autographed Dallas Cowboys Riddell Replica New Full Size Helmet. Dak signed this helmet in person at a private signing. This autograph was professionally authenticated by one of Ebay's primary approved leading third party autograph authentication services, JSA. Want more assurance before you buy? Go to JSA website and enter the certificate # WP998372 into the verification field and see the proof for yourself! The item will come with a JSA Certificate Of Authenticity (COA) certification card and a JSA certification sticker that was placed on the helmet after being signed. Item also comes with Dak Prescott exclusive autograph authentication sticker that was placed on helmet. Shipping and handling is $20.