This storage system requires the use of one of the expansion boxes (either Dark Mountains or Valhalla) and includes trays that will fit in both the main box and the expansion box. It is designed to hold both the main game and both of the expansions. It will also hold premium sleeved cards. The system is composed of six trays where one tray, which holds the larger cardboard pieces, is designed to fit into the expansion box and sits on top of the expansion boards and manuals. Another tray is designed to hold the sleeved cards where one of the card slots has a hidden compartment to hold various tokens and one set of mini-cards (I decided to use the burial ground tiles). The remaining mini-cards can be placed in the slot to the right. The remaining trays are used to hold the tokens as pictured and are designed to be placed right beside the board at game set-up to make for easy and quick set-up time.