Architects Of The West Kingdom Insert: - Rules of Play says:
Insert compatible with Architects of the West Kingdom®, including the Age of Artisans® expansion and the Architects 2018 KS Promos pack. The design provides both efficient storage and improved game play. Many of the trays can be utilised during the game, and they greatly aid set-up and clear-away times. The rules and boards act as a lid on top of the trays.