The 2021 Bowman Platinum MLB Blaster Box contains 32 baseball trading cards featuring players like Fernando Tatís Jr., Casey Mize, and Mike Trout. Each card is printed on card stock and may include autographs from players like Mike Trout. The cards are from the Major League Baseball (MLB) league and are part of the 2021 Bowman Platinum set. The box is factory sealed and includes various special features like serial numbering, holograms, limited editions, and rookie cards.