Our Era insert is composed of (7) trays and will also hold the Collector Set 1 mini-expansion. One tray is there to hold the player trays and pad. Another tray will hold the various tokens and pegs. The remaining trays store and organize the various buildings so that they can be placed right beside the playing area. Of those, there is a wall tray and another tray puts the resource buildings together. A last tray is there to organize and store the various dice.