The Dungeon can store a whole card collection, including deck boxes, playmats, and accessories, plus a large amount of individual cards (even with larger top loader sleeves). Its unique design ensures the box stays securely closed, even when filled to the brim. The premium Nexofyber+ exterior gives off the same classy vibe as the rest of the Convertible line, and is compatible with other popular boxes on the market. This box is truly a versatile and stylish choice for any card collector.