These are modified trays for the original Imperial Assault insert that are deisgned to work with the Imperial Assault II insert. They are the same size as the originals, but have been modified to maximize storage and hold the additional cardboard tokens from the expansions that the Imperial Assasult II insert is designed to hold. NOTE: You do not need to purchase this if you bought the Imperial Assault insert after 3/12/2016. (Game not included)