A card case is a type of storage container specifically designed to hold trading cards and other collectibles. Card cases come in a variety of sizes and styles, and can be made from a wide range of materials, including plastic, cardboard, and leather. Some card cases have a top-loading design, which means that the cards are inserted from the top rather than the side, while others have a side-loading design. Some card cases also have additional features such as reinforced corners, a sturdy handle, and a lockable latch to help protect the cards inside. Card cases are commonly used by collectors to store and transport valuable trading cards, and are also sometimes used to display cards at conventions and other events.