These seem to be the Disney Collector Cards - Series One set from IMPEL. They changed their name before series 2 was released to SKYBOX. You will see them listed both ways on EBAY. They were mass produced like most of the products from the early 90's, so they really aren't worth much. There are 2 holograms that were inserted with series 1. Series 2 had 3 double sided holograms. If you are missing any cards from the set, there are plenty available, but in some cases if you need too many cards, it is cheaper to buy a full set. There is also a Binder that was made to match the pack design (All Black). There was also a Series 1 and Series 2 Minnie Mouse collector cards from the same time frame and company. Let me know if you have any questions. I have both sets in my collection.