Prototype: 5 various Swiss Federal Railways (SBB) lightweight steel cars of different types. 2 type C4 lightweight steel cars, 3rd class. 1 type B4 lightweight steel car, 2nd class. 1 type Cr4 lightweight steel car, 3rd class with a buffet area. 1 type F4 lightweight steel baggage car. For use in lightweight trains on flat terrain on the route Geneva-Bern-Zürich. All of the cars in fir green basic paint scheme. The cars look as they did around 1950.

Model: The minimum radius for operation is 360 mm / 14-3/16". All of the cars have factory-installed interior lighting with warm white LEDs. The lightweight steel baggage car has a factory-installed pickup shoe. The entire car consist can be supplied with current using the factory-installed current-conducting close coupler heads. A fixed, defined sequence of cars is assigned to do this. Extended diaphragms are included to replace the retracted diaphragms at the ends of the car consist. Total length over the buffers 126 cm / 49-5/8".