The 2025-26 Topps Rise to Stardom Rainbow Foilboard Cooper Flagg #RTS-1 0b06 is a single-insert sports trading card featuring basketball player Cooper Flagg from the Dallas Mavericks. Manufactured by Topps in 2025, this original card is part of the Rise to Stardom set and is a parallel variety with a Rainbow Foilboard design. As a unique collectible item for fans and collectors, this card showcases Cooper Flagg as he navigates his way to stardom in the world of basketball.