The TRIANG X526 Chassis and S4165 Smoke Unit Support is specifically designed for the R358 Davy Crockett Loco model in 1:76 scale. This vintage steam locomotive features the iconic 2-6-0 wheel configuration, analogue control system, and two-rail system. With its Transcontinental corporate livery and black colour scheme, this model accurately captures the era of steam locomotives before grouping in 1922. The addition of the smoke unit enhances the authenticity and realism of this collectable piece for model railway enthusiasts.