Tyreek Hill Autographed Kansas City Chiefs Full Size Speed Replica Helmet. This is a Kansas City Chiefs Full Size Speed Replica Helmet that has been hand signed by Tyreek Hill. It has been certified authentic by Beckett Authentication (BAS) and comes with their sticker and matching certificate of authenticity. At Nikco Sports, we have been known for our exclusive and high quality Footballs.We have been designing and creating these outstanding Footballs for over 30 Years. Your exclusive Tyreek Hill Signed Helmet will come fully wrapped in protective plastic, along with a Certificate of Authenticity that is signed by our CEO. We will respond to you within 24 hours and do our best to help you out!