This is the Athearn HO Scale 40ft Offset Coal Hopper w/Load, SCL #1 (4 Pack).

The development of the hopper car went along with the development of automated handling of such commodities, with automated loading and unloading facilities. Open hopper cars are used for commodities such as coal, which can suffer exposure with less detrimental effect. Hopper cars have been used by railways worldwide whenever automated cargo handling has been desired.

MODEL FEATURES:
Removable load
Factory applied wire grab irons, stirrup steps, end braces, and brake platform
Separately applied brake gear including brake wheel, brake wheel housing, air reservoir, brake cylinder, triple valve and trainline with supports and roping eye
Weighted for optimum performance
McHenry® operating scale knuckle couplers
Precision machined metal wheels with RP25 contours
Fully assembled and ready-to-run
Highly-detailed, injection molded body
Minimum radius: 18”