The Voyages Of Marco Polo Insert v2: - Rules of Play says:
Insert compatible with The Voyages of Marco Polo® including the The New Characters® mini expansion and The Agents of Venice® expansion. 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. Insert is separately compatible with Marco Polo II: In the Service of the Khan®.