Model: The cars have factory-installed LED interior lighting. They also have operating, current-conducting couplers between the car halves and at the outer ends of the cars. A locomotive or car with a current-conducting coupler is needed to supply power to the cars. Length over the buffers approximately 30.5 cm / 12".
Prototype: German Federal Railroad (DB) type AB3yge "Rebuild Car", 1st/2nd class, and type B3yge "Rebuild Car", 2nd class, each car with three wheelsets. Permanently coupled double cars in real life. Chrome oxide green paint scheme. The cars look as they did in 1965.
A pair of cars to go with these cars can be found in the Märklin H0 assortment under item number 43186.

A diesel locomotive with a current-conducting coupler to go with these cars can be found in the Märklin H0 assortment under item number 37176.