The Panini 2021 Donruss Baseball Trading Card Blaster Box contains 11 packs of sports trading cards featuring players from Major League Baseball. Manufactured by Panini, this box includes cards with various special features such as authenticity pieces, serial numbering, holographic foil, rookie cards, and refractor cards. With a variety of single-insert cards, short prints, and memorabilia, this product offers collectors a diverse selection to enhance their baseball card collection for the 2021 season.