The 2020 Tier One Bundesliga Dual Auto /25 featuring Dominique Heintz and Christian Gunter is a highly sought-after soccer trading card set by Topps. This single-insert card showcases dual autographs from the players, with the autograph format being a label or sticker. The card is serial numbered and part of the 2020-21 Topps Tier One Bundesliga set, making it a rare and valuable collectible for fans of both athletes and the sport.