This is a 2-pack of the Lionel 6-11861 Chesapeake & Ohio PS-4 Flatcars with Piggyback Trailers. They are in excellent condition, in original boxes. I am listing as used because one of the black pieces (the flat door looking piece) is loose at the bottom and not attached to the base of the trailer on REA 8103. I took a photo but it looks attached in picture. SOLD AS IS. However, it is in perfect condition except for where mentioned. Ask for more photos if interested.