Walthers Cornerstone HO Scale Old-Time Coal Conveyors are based on those found at commercial coal yards of every size. Portable conveyors allowed coal to be unloaded quickly from waiting hoppers into wagons or trucks. They were later used to handle all types of bulk materials including grain, sand, gravel and other similar loads. This kit includes parts for three complete conveyors. The Old-Time Coal Conveyors kit is one of many SceneMaster and Cornerstone HO Scale scenery details. Parts for three conveyors For use on any steam or classic diesel-era layout Based on typical design used across North America Molded in an appropriate base color