Each car in this easy-to-build HO Scale USRA 2-Bay 55-Ton Open Hopper 3-Pack set of plastic freight car kits from Accurail features a one-piece body with details molded in place. It's based on a very widely used cars built beginning in the early 1900s and in use into the 1960s, making it a great addition to your steam and classic-diesel-era freight trains. Decorated models feature authentic paint and lettering schemes with end reporting marks. This three pack includes three cars, each with a unique roadnumber and/or scheme. In addition, the trucks feature nonmagnetic axles, engineering plastic wheels. The car features pre-drilled holes for the supplied AccuMate(R) magnetic knuckle couplers. This kit is ideal for novice builders or seasoned modelers looking to expand their car fleets. The USRA 2-Bay Hopper is one of many Accurail hopper car kits.