Custom card sleeves for use with Fireball Island: The Curse of Vul-Kar. 100 sleeves is enough to sleeve the base game and at least one or two expansions. If you have all the expansions, you will need two sets of sleeves, i.e., 200 total.
These sleeves are part printed to provide even more atmosphere. Check out the image of the cards with and without the sleeves in this listing.