IMPORTANT: This insert is designed to use (2) boxes - the main and either the State of Emergency, On the Brink, or In the Lab expansion boxes. It is also designed for the 2013 edition - not previous editions. The insert is designed to hold all the playing pieces of the base game and the 3 expansions referenced above. It will also hold sleeved cards. The additional box is used to hold the boards, manuals, and pad used in the games. The insert comes with one removable tray to store several of the player pieces by the board. NOTE: I did remove the blank cards. The insert is not designed to hold them but it may depending upon the sleeves you use.