The frames for the heavy duty flat cars are constructed of metal

because it has totally Solder-free connections

Trainz Product Id: 12201314

The Trainz SKU for this item is P12272086

Athearn 89099 HO Santa Fe RTR 50' Combo Door Box #49509 DwDetails-0.60-0.25-9.15-6.15-5.15-2 The frames for the heavyThis is an Athearn 89099 HO Scale Santa Fe RTR 50' Combo Door Box #49509. Model Features: Fully assembled and ready to run out of the box, Highly detailed, injection molded body, Separately applied side, end ladders and brake wheel, Painted and printed for realistic decoration, Weighted for trouble free operation, 33 machined metal wheels with RP25 contours operate on all popular brands of track, Body mounted McHenry operating scale knuckle couplers,