20 Assorted Vintage Model Railroad Cars. Here is an assortment of little cars meant to add a little bit of life to a model railroad. Most do not have bottoms and the some that do are marked "EKO". Most of the cars are 2 1/2" and longer. The cars are made of plastic. Please see the images for a listing. The cars are stored in an Athearn train box that is approx 10 5/8" x 3 5/8" x 1 1/2" and it weighs 0.46lb. The cars have some signs of wear.