The product is a Derrick Mason autographed jersey, signed by the player himself. The authenticity of the signature is guaranteed by James Spence Authentication (JSA). This jersey represents the Baltimore Ravens team in the NFL, making it a coveted item for football fans and collectors alike. This original autographed jersey is a unique and valuable piece of sports memorabilia for fans of the Ravens and football enthusiasts. GOOD LUCK BIDDING!!!! BUY MORE AND SAVE ON SHIPPING!!!!!! THANKS DAN