It runs on O31 curves and the pair measures 34 inches in length

This is a Lionel 1927284 O Union Pacific 60' Baggage #1837

The Trainz SKU for this item is P11460916

This is an Athearn 14204 N Scale Chessie 40' Fruehauf Smooth Trailers #2 (2)

Trainz Product Id: 11548268

Bachmann 18708 HO Conrail Bethlehem Steel 100 Ton 3 Bay Hopper #473877 ProductID_11526965 It runs on O31 curvesThis is a Bachmann 18708 HO Conrail Bethlehem Steel 100 Ton 3 Bay Hopper #473877. Features: blackened metal wheels, body mounted couplers, non magnetic axles Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Bachmann Model Number: 18708 Road Name: Conrail (CR) MSRP: $34. 00 Scale Era: HO Scale Model Type: Freight Cars The Trainz SKU for this item is P12179331. Trainz Product Id: 12179331