The product is a 2020 Topps Definitive Green Rookie Auto trading card of Major League Baseball player Brendan McKay from the Tampa Bay Rays. This autographed card, signed by Brendan McKay, is part of a limited print run of only 25 copies. It is a valuable collectible for fans of baseball and trading cards, featuring a serial number and a parallel variety, making it a sought-after item in the sports memorabilia market.