The product is a 2026 Topps Finest Mark McGwire Finest Timelines Refractor trading card (#FT-25). This baseball card features Mark McGwire from the St. Louis Cardinals, part of the Finest Timelines insert set. Made of card stock material, the refractor variety adds a special shine to the card. Manufactured by Topps, this original sports trading card is a collector's item for fans of Major League Baseball.