The 2021 Topps Complete Set Major League Baseball MLB Green Box from Walmart contains standard-sized sports trading cards featuring players from the Major League Baseball (MLB). Manufactured by Topps, this exclusive set includes rookie cards, parallels, and cards of teams like the New York Yankees, Los Angeles Dodgers, and Los Angeles Angels. With a focus on the 2021 season, this box offers collectors a comprehensive assortment of baseball cards to enjoy and collect.