This is for servicing and presenting locomotives with up to 4 driving axles and coupled axles. It is ideal for models of the class 03, 41, and the Mikado. It is made of anodized aluminum sections. Four adjustable pairs of roller brackets with precision ball bearings are included. C Track sections are included for positioning non-powered axles. Locomotive power connections for conventional transformers, Delta, or the Digital System are present. The center conductor is removable in the roller area. The running rails can be separately connected so that the unit is also suitable for two-rail locomotives. Up to two 78110 pairs of roller bracket or the 78111 measurement device can be added to this roller test stand. Dimensions 400 x 42 x 30 mm / 15-3/4" x 1-5/8" x 1-3/16".