Colored and patterned wraps that you can glue around the base of the figures. Slide the corresponding card side into a card sleeve with the card and you have a way to tell who is who.
Pages 1&2 are for the Core, Wave 1, Twin Suns Exp, & Wave 2
Page 3 are for Waves 3, 4, 5 & Return to Hoth.
Pages 4-6 are extras. because you can't have more then 6 units of one type, I have 6 colors for each faction.
See the picture in the gallery for what it looks like.