Boxes of Holding Set 2 contains three brand-new, sturdy cardboard boxes: Doors, holding up to 500 cards; Treasures, also up to 500 cards; and Dungeons, large enough for all the Dungeon cards and Seals from Munchkin Apocalypse; as well as three new, exclusive Munchkin cards for Munchkin Cthulhu 4, Munchkin Zombies 3, and Munchkin Apocalypse!