The product is a lot of 25 1999 Topps Traded Mark Mulder trading cards, featuring the rookie card of the player. Manufactured by Topps, these cards are from the 1999 season and are part of the Traded set. Each card has the card number T8, making it easy to identify and collect. These cards would be ideal for fans of Mark Mulder or the Oakland Athletics, looking to add his rookie card to their collection of sports memorabilia.