Prototype: 2 type Fas four-axle open dump cars, with ribbed side walls and transition platforms. Reddish brown basic paint scheme. Privately owned cars for the firm Wiebe Track Laying Machines, Inc., Achim, registered in Germany. The cars look as they did around 2015.
 

Model: The cars have type Y 25 trucks. The hoppers can be tipped to both sides. This is the version with ribbed side walls. The cars have movable compressed air cylinders and pneumatic slides. Both cars have different car numbers and are individually packaged. There is also a master package. Total length over the buffers 28 cm / 11".
DC wheelset E700580.

The class V 320 diesel locomotive for the firm Wiebe can be found to go with this car set under item number 39321 and additional cars under item number 48459 in the Märklin H0 assortment as well as under item number 24142 in the Trix assortment.