The set consists of two electric locomotives Re 4/4 III of the Swiss Federal Railways. True to the original designed model with many separately attached plug-in parts that are partially etched. 5-pole engine with mass flywheel. Drive on eight axles of which two axles have traction tires to increase the traction power, wheel set with low flanges, LED headlight that changes automatically with the direction of travel, PluX22 interface, NEM 362 coupler pocket with close coupling mechanism.