Model: Both cars are loaded with removable semi-truck rigs. The car frames are constructed of die-cast metal, and the cars have close coupler mechanisms. Both cars have different car numbers. Total length over the buffers 204 mm / 8".

Prototype: 2 different standard design type Sdkmms deep well flat cars painted and lettered for TRW. Loaded with semi-truck rigs for the freight forwarder Speditionen H. Essers from Belgium.