Stub sill tank cars began entering service in the mid 1960s, replacing the aging full center sill tank car design. The stub sill design is easily recognizable as it has no solid underframe spanning the length of the car, instead the bolsters are attached directly to the tank. The stub sill design is often referred to as the “modern tank car design” because from the 1970s onward majority of general-purpose tank cars were constructed with stub sill design. Our model represents cars built from the mid 1960s and still in service today. A wide variety of products can be transported in this size and type of tank car. This includes asphalt, ethanol, fuel oil, metal sodium, molten phenol, paraffin wax, tallow, urethane polyol, and vegetable oil.