Most are standard sized cards (2.5″ X 3.5″). They are typically made available to the public before the release date of the cards. Usually the text on the back of a Promo card talks about the upcoming set.
Set Composition: Parallel Card Set (72 cards 1 – 72). COMPLETE PARALLEL CARD SET OF 72. NOTE: PARALLEL CARD SET HAS A SILVER FOIL TITLE. THE X-FILES SEASON 2. YOU ARE VIEWING A 1996. ON THE LOWER RIGHT HAND SIDE OF SET.
1996 Topps The X-Files Season 2 3-D Holograms Card 3-D Holograms (1:18 packs) X2 Dana Scully With X3 Back Card #s X2 With ERROR X3 Back Inverted USA shipping is FREE Thank you LB